The study and impact of folklore on Hindi literature has  been the subject of my doctoral  dissertation (D.Phil.) at the University of Allahabad .  The subject of my thesis was   “ Folk Elements in Hindi Poetry 1850-1900” ( Bharatendyu Yugin Hindi Kavya Mein Loktatva). This research work was done under the supervision of Padmabhushan  Dr. Ram Kumar Varma , the renowned Hindi littérateur and the then head of the Department of Hindi, at the University of Allahabad .The thesis was published by Rishabh Charan Jain and Sons, New Delhi.