After years of Jahar Roy's passing away The Ananda Bazar Patrika revealed that Jahar Roy had a library with huge stock of books. He spent a large sum of his earning over buying books. He used to burn mid-night oil in reading books. This truth was known to a very few. Such a voracious reader of books must have widened the dimension of knowledge, which empowered him to comprehend the delicacies of numerous characters he portrayed.Satyajit Roy , Tapan Sinha made good use of this great actor.