The trial of the Officers of the I.N.A. was held in

1. A

   Red Fort, Delhi

   (a) Red Fort, Delhi. The INA officers’ trial (Shah Nawaz, Sahgal, Dhillon and others) was held at the Red Fort in 1945–46. That venue is the official key.

2. B

   Gwalior Fort

   (b) Gwalior Fort. A historic Maratha–Scindia fortress, not the INA courtroom.

3. C

   Amer Fort, Jaipur

   (c) Amer Fort, Jaipur. A Rajput palace-fort, unrelated to the 1945 trials.

4. D

   Agra Fort

   (d) Agra Fort. Mughal seat, not the INA trial venue.

Summary. Official key is (a) Red Fort, Delhi. The INA Red Fort trials of 1945–46 became a national cause. Gwalior, Amer and Agra are distractor forts. Honour the stored letter (a).