Dr. Goyal, for the first time rediscovered for the Hindi and Punjabi literary world a 19th century distinguished and celebrated poet, Bhai Santokh Singh. He was a Scholar poet who composed two monumental epics namely ‘Guru Nanak Prakash’ and ‘Guru Pratap Suraj’; wrote a commentary on ‘Japu Ji’ and translated ‘Valmiki Ramayana’ in Braj Bhasha verse. The script of all his works being Gurumukhi, he remained beyond the reach of Hindi Scholars. The two very voluminous epic poems, consisting of about sixty thousand verses, based on the life and teachings of the ten Gurus, present vividly the cultural, political and social history of the age and imbibed with the spirit of spiritualism and heroism
Very little was done to explore the literary and cultural tenets of these epics. It was given to Dr. Goyal to accomplish this task and he did it with distinction. He initially had chosen it as the subject of his Ph.D. thesis. Since then he has published several books and research papers on this poet. It was at big instance that Punjab language Department published both the epics in Hindi in 10 volumes with lengthy and exhaustive introductions by Dr. Goyal.
SGPC, Amritsar has also published four monographs in Hindi, Punjabi and English, written by Dr. Goyal on Bhai Santokh Singh. Over a lakh copies were printed for free distribution all over the world.