Krishnan was born in the village of Velukkudi in present-day Thiruvarur district. His preceptor is Sholinghur Sri Doddacharyan Swamigal from the lineage of the acharya associated with the Doddacharyar Sevai in the Kanchipuram Varadaraja Swami Garuda sevai. He delivers lectures in person, distributes them on compact disc and MP3, and broadcasts them on TV channels,He operates the Kinchitkaram Trust, which translates, publishes, and distributes religious materials, conducts classes, and locates and maintains temples and other religious and historic sites. He is known for his meticulous and chaste rendering of the Vedas, the Upanishads, Naalayira Divya Prabandham, and the Puranas, frequently including human perspectives in his upanyasams.
Krishnan speaks Sanskrit, Tamil, and English, and lectures and distributes recordings in both of the latter languages. He has lectured in a number of foreign countries, including the United States, Canada, the UK, Singapore, UAE, Bahrain, Australia, and Oman. He lives in the temple city of Srirangam in Tamil Nadu.
