Abstract
Sheikh Ahmad Sirhindi (971-1034AH) titled as Mujaddid Alf Thani (Reformer of the second thousand years) made excellent use of epistle-writing at his time for reinforcement of the teachings of Qur’an and Sunnah. These letters known as Maktubat have indeed gained a special place among the letters of Sufi sheikhs in the history of the subcontinent. Imam-e-Rabbani wrote five hundred and thirty six (536) letters to one hundred and ninty two (192) recipients including nobles of his time, religious scholars, spiritual leaders, his authorised disciples, followers, men and women and to his Spiritual Guide (Murshad), Hadrat Khawaja Baqi Billah of Delhi. He culminated this art of epistle-writing to its climax. His letters played a vital role to reform the Indian society of his time in all fields of human interest. These epistles are still useful and impressive. The present article throws light upon practical and intellectual impacts of his letters on elite class of his time and on his successors.