BPSC AEDO GS Paper 2026 Answers with Explanation (14 April)

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The BPSC AEDO GS Paper 2026 (1st day) was successfully conducted on 14 April 2026, attracting thousands of aspirants across Bihar. Candidates who appeared for the exam are now eagerly searching for the BPSC AEDO GS answer key 2026, along with detailed explanations to evaluate their performance.

In this article, we provide a section-wise BPSC AEDO GS Paper 2026 answers with explanation, helping you understand the correct answers, exam trends, and expected performance analysis.

Download: BPSC AEDO Question Paper 2026 (14th April)

Also Check Here: BPSC AEDO Answer Key 2026

BPSC AEDO GS Paper 2026 Answers with Explanation (14 April)

Zojila Pass lies in between

(A) Kashmir and Himachal

(B) Kashmir and Tibbat

(C) Kashmir and Pakistan

(D) Kashmir Valley and Ladakh

Answer: d

Explanation:

Zojila Pass serves as a vital natural gateway connecting the Kashmir Valley to its west with the Ladakh region to its east.
It is located on National Highway 1 (NH-1), specifically linking the towns of Srinagar and Leh.
The pass separates the Kashmir Valley from the Dras Valley, which is considered the gateway to Ladakh

The British East India Company, initially a trading entity, gradually established its control over Indian territories through various means. This policy was implemented by Lord Dalhousie, leading to widespread resentment among Indian rulers.

Assertion (A): The Doctrine of Lapse was implemented to expand British territories.

Reason (R): It allowed the British to annex states with no direct male heir.

Choose the correct option:

(A) (A) is true but (R) is false

(B) (A) is false but (R) is true

(D) Both (A) and (R) are true and (R) is the correct explanation of (A)

Answer: d

Explanation:

Assertion (A) is true: The Doctrine of Lapse was an annexation policy implemented by Lord Dalhousie (Governor-General from 1848 to 1856) with the primary goal of expanding British territorial control in India.
Reason (R) is true: The mechanism of this policy was that any princely state under British influence would automatically “lapse” into British hands if the ruler died without a natural male heir. It specifically disregarded the traditional Indian practice of adoption for succession.
(R) explains (A): The reason (R) directly explains how the policy in (A) achieved its goal of expansion. By creating a legal pretext to take over states without biological male heirs, the British were able to systematically annex territories like Satara, Jhansi, and Nagpur.

Which Article of the Constitution provides that all proceedings in the Supreme Court and in every High Court shall be in English Language?

(A) Article 350

(B) Article 345

(D) None of the above

Answer: c

Explanation:

Article 348(1): Specifically states that until Parliament by law otherwise provides, all proceedings in the Supreme Court and every High Court shall be in the English language.
Article 348(2): Allows the Governor of a State (with the President’s consent) to authorise the use of Hindi or any other language for proceedings in a High Court, though judgments and orders must still be in English.

With reference to the Guhilots/Sisodiyas, Rathors and Kachwahas, consider the following statements:

The Guhilots ruled over Mewar with Chittor as their capital.

Sawai Jai Singh of the Rathor dynasty was a high-ranking noble under the Mughals.

Mansingh of the Kachwahas was a trusted commander of Akbar.

Maharana Pratap of the Sisodiyas fought against Akbar at the Battle of Haldighati.

Jaswant Singh of the Kachwahas was also an astronomer.

Which of the above statements is/are correct?

(A) 1, 3 and 4 only

(B) 1, 3, 4 and 5 only

(C) 2, 3 and 4 only

(D) 1, 2, 3 and 5 only

Answer: a

Explanation:

The Guhilots ruled over Mewar with Chittor as their capital.
- The Guhilot dynasty (and later their Sisodiya branch) established the Kingdom of Mewar. Chittor served as their historic capital before the capital shifted to Udaipur.
Sawai Jai Singh of the Rathor dynasty was a high-ranking noble under the Mughals.
- This is incorrect because Sawai Jai Singh II belonged to the Kachwaha dynasty of Amber (Jaipur), not the Rathor dynasty. The Rathors primarily ruled Marwar (Jodhpur).
Mansingh of the Kachwahas was a trusted commander of Akbar.
- Raja Man Singh I of Amber (Kachwaha dynasty) was one of Emperor Akbar’s most prominent and trusted generals (“Navratnas”). He led the Mughal forces in major campaigns, including the Battle of Haldighati.
Maharana Pratap of the Sisodiyas fought against Akbar at the Battle of Haldighati.
- Maharana Pratap, the Sisodiya ruler of Mewar, famously resisted Mughal expansion and fought Akbar’s forces (led by Man Singh) at Haldighati in 1576.
Jaswant Singh of the Kachwahas was also an astronomer.
- This is incorrect due to a mix-up of names. While Sawai Jai Singh II (Kachwaha) was the famous astronomer who built the Jantar Mantar observatories, Jaswant Singh was a famous ruler of the Rathor dynasty of Marwar.

In 1917, Mahatma Gandhi led a movement, which marked his first major involvement in the Indian independence movement. This movement was aimed at addressing the grievances of indigo planters suffering under oppressive policies.

Assertion (A): The Champaran Satyagraha was Gandhi’s first major mass movement in India.

Reason (R): The movement aimed at resolving the issues faced by the indigo planters.

Choose the correct option:

(A) Both (A) and (R) are true and (R) is the correct explanation of (A)

(B) (A) is false but (R) is true

(C) Both (A) and (R) are true but (R) is not the correct explanation of (A)

(D) (A) is true but (R) is false

Answer: a

Explanation:

Assertion (A) is true: The Champaran Satyagraha of 1917 was indeed Mahatma Gandhi’s first major civil disobedience movement in India after his return from South Africa. It marked the beginning of his influential role in the Indian freedom struggle.
Reason (R) is true: The core purpose of the movement was to protest the Tinkathia system, where British planters forced local farmers to grow indigo on 3/20th of their land under highly exploitative conditions.
Connection: Because Gandhi successfully organized and led this specific struggle for the indigo planters (R), it became his first “Satyagraha” or mass movement on Indian soil (A).

Match the following lenses/mirrors with their correct applications.

Column – I (Lenses/Mirrors) | Column – II (Application) i. Concave mirror | p. Used in cameras and projectors for focusing light ii. Convex mirror | q. Used in correcting myopia (short-sightedness) iii. Convex lens | r. Used in vehicles for rear-viewing iv. Concave lens | s. Used in shaving to produce magnified upright image

Select the correct matching option:

	i	ii	iii	iv
(A)	s	r	q	p
(B)	r	s	q	p
(C)	s	r	p	q
(D)	r	s	p	q

Answer: c

Explanation:

i. Concave mirror → s. Used in shaving to produce magnified upright image: When an object is placed close to a concave mirror, it creates a virtual, erect, and enlarged image, making it ideal for seeing fine details while shaving.
ii. Convex mirror → r. Used in vehicles for rear-viewing: These mirrors always form a diminished, upright image and have a wider field of view, allowing drivers to see a larger area of the traffic behind them.
iii. Convex lens → p. Used in cameras and projectors for focusing light: Because it is a converging lens, it is used in optical instruments like cameras and projectors to focus light and form clear images on a sensor or screen.
iv. Concave lens → q. Used in correcting myopia (short-sightedness): These are diverging lenses used in spectacles to help spread incoming light so that it focuses correctly on the retina for those who cannot see distant objects clearly

Bharatmala Pariyojna was launched in October 2017. The total length of National Highways approved in it was

(A) 27,900 km

(B) 41,800 km

(C) 40,500 km

(D) 34,800 km

Answer: d

Explanation:

Under the Bharatmala Pariyojana Phase-I, which was approved by the Cabinet Committee on Economic Affairs (CCEA) in October 2017, a total length of 34,800 km of National Highways was sanctioned for development.

Which of the following is the primary pigment involved in photosynthesis?

(A) Xanthophyll

(B) Carotene

(C) Chlorophyll b

(D) Chlorophyll a

Answer: d

Explanation:

Chlorophyll a is considered the primary pigment of photosynthesis because it is the only molecule directly involved in the conversion of light energy into chemical energy.
It serves as the reaction centre in both Photosystem I and Photosystem II.
It is universally present in all photosynthetic organisms, including higher plants, algae, and cyanobacteria.

Which of the following statements are true in context of the UNGA resolution calling for a peaceful resolution of the Ukraine war?

The meeting was held on completion of three years of Russian invasion of Ukraine in Chicago, USA.

The resolution received 65 abstention, 60 votes in favor and 36 votes against the call for de-escalation.

The US brought forward a rival resolution titled ‘The Path To Peace’.

(A) Only III

(B) Only II

(C) Only I and III

(D) All of the above

Answer: a

Explanation:

UNGA meetings are held at the UN Headquarters in New York City, not Chicago.
The voting figures mentioned (65 abstentions, 60 in favor, 36 against) are incorrect and do not match actual UNGA voting patterns on Ukraine resolutions.
The United States did introduce a rival resolution titled “The Path to Peace”.

What is the approximate percent of geographical area covered under forest in Bihar?

(A) 11%

(B) 13%

(C) 7%

(D) 5%

Answer: c

Explanation:

Bihar has relatively low forest cover compared to the national average.
As per recent forest reports, forest area in Bihar is approximately 7% of its geographical area.

Which of the following best explains the pressure flow hypothesis in phloem transport?

(A) Movement of water only through xylem

(B) Transport depends only on gravity

(C) Osmotic pressure difference between source and sink

(D) Active transport of sugars from sink to source

Answer: c

Explanation:

The pressure flow hypothesis (also called mass flow hypothesis) explains how food (mainly sugars like sucrose) is transported in plants through the phloem:

At the source (e.g., leaves), sugars are actively loaded into the phloem.
This increases the osmotic pressure, causing water to enter from the xylem.
The resulting high pressure pushes the sap toward the sink (e.g., roots, fruits).
At the sink, sugars are unloaded, lowering osmotic pressure.

Which Article of the Constitution provides that no person accused of any offence can be compelled to be a witness against himself?

(A) Article 22

(B) Article 23

(C) Article 20

(D) Article 21

Answer; C

Explanation:

Article 20(3): Specifically states that “No person accused of any offence shall be compelled to be a witness against himself.” This is known as the Right against Self-Incrimination.
Scope: This protection applies to both oral evidence and documentary evidence that might lead to the person’s own conviction.

An ideal gas is taken around a closed cycle ABCA as shown in the p-V diagram below. The coordinates of the points are: A(V, p); B(3V, 4p); C(3V, p). What is the work done during one complete cycle?

(A) 3pV

(B) 6pV

(C) 2pV

(D) pV

Answer: a

Explanation:

Work done in a complete p–V cycle equals the area enclosed by the cycle.

Step 1: Identify the shape

Points are:

A(V, p)
B(3V, 4p)
C(3V, p)

These form a triangle in the p–V diagram.

Step 2: Base and height

Base (AC) = 3V−V=2V3V – V = 2V3V−V=2V
Height (difference in pressure between B and C) = 4p−p=3p4p – p = 3p4p−p=3p

Step 3: Area of triangle

Work done=21×base×height=21×2V×3p=3pV

With reference to the Karkota dynasty, consider the following statements:

Durlabhavardhana, also known as Prajnaditya, was the founder of the dynasty.
Lalitaditya Muktapida defeated the Turks and built the Martand Sun Temple at Anantnag.
Vajraditya’s reign was marked by territorial expansion into the Deccan.
Jayapida imposed excessive taxation, which weakened his rule.

Which of the above statements are correct?

(A) 2 and 4 only

(B) 1, 2 and 4 only

(C) 3 and 4 only

(D) 1 and 2 only

Answer: b

Explanation:

Durlabhavardhana, also known as Prajnaditya, was the founder of the dynasty.
- Durlabhavardhana founded the Karkota dynasty in the 7th century (c. 625 CE). He was the son-in-law of Baladitya, the last king of the Gonanda dynasty. He is also referred to by the title Prajnaditya in historical texts.
Lalitaditya Muktapida defeated the Turks and built the Martand Sun Temple at Anantnag.
- Lalitaditya Muktapida (r. 724–760 CE) is the most famous ruler of this dynasty. He is credited with defeating various foreign invaders, including the Turks, Arabs, and Tibetans.
- He built the colossal Martand Sun Temple near Anantnag, which is a masterpiece of Kashmiri architecture.
Vajraditya’s reign was marked by territorial expansion into the Deccan.
- Vajraditya (also known as Bappiyaka) was a successor of Lalitaditya, but his reign was marked by decline and cruelty rather than expansion. Most historians agree that the Karkota expansion reached its zenith under Lalitaditya; subsequent rulers like Vajraditya presided over a weakening state.
Jayapida imposed excessive taxation, which weakened his rule.
- Jayapida Vinayaditya, the grandson of Lalitaditya, initially attempted to emulate his grandfather’s conquests. However, according to Kalhana’s Rajatarangini, his later years were marked by tyrannical rule and excessive taxation (including taxing the Brahmins), which led to widespread resentment and weakened the dynasty’s stability.

H₂O + C ——→ H₂ + CO. The above reaction is an example of

(A) Wacker process

(B) Aldol condensation

(C) Water gas reaction

(D) Ziegler-Natta process

Answer: c

Explanation:

Steam reacts with hot carbon (coke) to produce a mixture of hydrogen (H₂) and carbon monoxide (CO).
This mixture is called water gas, used as a fuel and in industrial processes.

It was a Secret Society founded by Vinayak Damodar Savarkar (VD Savarkar) and his brother Ganesh Damodar Savarkar (Babarao Savarkar) in 1904 to overthrow British rule in India. It established connections with Indian revolutionaries in London and had links with the India House group, fostering international support for the Indian independence movement.

Which of the following revolutionary organizations is described in the above passage?

(A) Jugantar Party

(B) Ghadar Party

(C) Abhinav Bharat

(D) Anushilan Samiti

Answer: c

Explanation:

It was founded in 1904 by Vinayak Damodar Savarkar and his brother Ganesh Damodar Savarkar.
It was a secret revolutionary society aimed at overthrowing British rule.
It had strong links with the India House in London, helping build international revolutionary connections.

Given below are two statements, one is labelled as Assertion (A) and other is labelled as Reason (R). In light of the below given statements choose the most appropriate answer from the options.

Assertion (A): In simple harmonic motion, the potential energy of the particle is maximum at the extreme positions.

Reason (R): At the extreme positions, the velocity of the particle is maximum.

(A) (A) is true but (R) is false

(B) (A) is false but (R) is true

(C) Both (A) and (R) are true but (R) is not the correct explanation of (A)

(D) Both (A) and (R) are true and (R) is the correct explanation of (A)

Answer: a

Explanation:

Assertion (A):
In SHM, potential energy is maximum at extreme positions because displacement is maximum there (x=±A)(x = \pm A)(x=±A).
Reason (R):
At extreme positions, velocity is zero, not maximum.
Velocity is maximum at the mean position (x=0)(x = 0)(x=0).

The oldest mountain range in India is

(A) Greater Himalaya

(B) Himachal Himalaya

(C) Aravali

(D) Shivalik

Answer: c

Explanation:

The Aravalli Range is one of the oldest mountains in the world, formed billions of years ago, much older than the Himalayas.

Which among the following are included in Directive Principles of State Politics?

Equal pay for equal work for men and women.
Right to work.
Public assistance in case of unemployment.

Select the correct answer using the code given below.

(A) None of the above

(B) All of the above

(C) 2 and 3

(D) 1 and 2

Answer: b

Explanation:

Equal pay for equal work for men and women: This is mandated by Article 39(d), which directs the State to ensure that there is equal pay for equal work for both men and women.
Right to work: This is covered under Article 41, which states that the State shall, within the limits of its economic capacity and development, make effective provision for securing the right to work.
Public assistance in case of unemployment: This is also provided by Article 41, which directs the State to provide public assistance in cases of unemployment, old age, sickness, and disablement

Which of the following statements about the play Karpuramanjari is correct?

(A) It is a famous work by Kalidasa that praises the Gupta kings.

(B) It was composed during the reign of Nagabhata II.

(C) It was written by Rajasekhara in Sauraseni Prakrit to please his wife Avantisundari.

(D) It was written in Sanskrit by Bhoja I to please his wife.

Answer: c

Explanation:

Karpuramanjari is a famous play composed by Rajasekhara.
It is unique because it is written entirely in Sauraseni Prakrit, unlike most classical plays in Sanskrit.
Rajasekhara wrote it for his wife Avantisundari, who was herself a learned woman.