He was born, on 2nd July 1968, in Guwahati, to late Mukunda Chandra Kalita and Smt. Satyabati Kalita of village- Dharapur in Kamrup (Metro) district of Assam. He had his schooling in Kendriya Vidyalaya at three different places namely Delhi Cantt., Bengdubi and Borjhar (Guwahati). He obtained B.Sc. degree from the Arya Vidyapeeth College, Guwahati, and thereafter LL.B degree from the University Law College, Gauhati University in the year 1994. Thereafter, he obtained LL.M degree, from Gauhati University, in the year 1997.
After obtaining law degree, he enrolled as an Advocate under the Bar council of Assam, Nagaland, Meghalaya, Manipur, Tripura, Mizoram, Arunachal Pradesh & Sikkim on 23/09/1994, and practiced, mainly in district courts, for a period of about four years. He also served as a lecturer in the J.B. Law College at Guwahati from 1998 for about two years. In the year 2000, he topped the list of selected candidates and joined the Assam Judicial Service on 10/05/2000.
He served in various capacities in the Assam Judicial Service at different places of Assam. He also worked in various capacities, in the Registry of the Gauhati High Court, including Registrar-cum-Principal Secretary to Hon’ble the Chief Justice, Registrar (Administration) and Registrar (Vigilance). He also served as Legal Remembrance-cum-Secretary to the Government of Assam, Judicial Department. He also served as District & Sessions Judge at Sonitpur, Nagaon and Jorhat districts.
At the time of his elevation, as an Additional Judge of the Gauhati High Court, he was a Super Time Scale District & Sessions Judge and was posted as District & Sessions Judge, Jorhat.