Question

4 Indian writers with their pen names

Answer 1

1) Birbal : Pramatha Choudhury.
2) Bikarna : Nikhil Sarkar.
3) Aparajita Devi : Radha Rani Devi.
4) Beduin : Debesh Ray.

Answer 2

There are various indian writers who have their pen names 
Bikerna is the pen name of the Nikhil Sarkar 
Vanu singh is the pen name of the Robindranath 
Nirapekha is the pen name of the Amitabh chowdhury 
Dabesh roy pen name is Beduin
Bimol Gosh is known as  kal pancha
also Aparajita devi is the nick name of the Radha Rani Devi.
Moreover many other writer have their own unique pen name.