With 45 years of experience in study and performance, Debashish has pioneered a style of Hindustani slide guitar that is remarkable and unique. He has designed and patented three guitars for raga music, which he has named Chaturangui, Gandharvi, and Anandi. These guitars are played lap style, with a small steel bar and finger picks.

With the lineage of Gurus like Pandit Brij Bhushan Kabra, Pandit Ajoy Chakrabarty, and Late Ustad Ali Akbar Khan, the inspiration has gone beyond performance. He has played on his guitars live and on record with Ustad Zakir Hussain, John McLaughlin, Jerry Douglas, Derek Trucks and many other world-renowned musicians. He has also performed with Pandit Ravi Shankar. He has participated in more than 3000 concerts all over the world and has trained over 1000 students. He has redefined Indian classical music on the slide guitar. Through his incredible talent and discipline, Debashish has elevated the Hindustani slide guitar to be the highest evolution of slide guitar on a global level.

Debashish has been a nominee for the prestigious Grammy Awards in 2002 and 2009. He has received the Songlines Music Award 2016, the BBC Planet Award 2007, the Asiatic Society Gold Medal 2005, and the President of India's Gold Medal 2005.