Question

what are the cause for describing Raja Rammohon Roy as "Modern man in India"?

Answer 1

This was because he opposed many ,"old" bad practices such as sati system .

Answer 2

Raja Rammohan roy made many reforms at the time of 17th century. He requested the britishers to abolish the system of Sati. He was a social reformer. So he is also known as 'Modern man in India'.

Hope it helps