Imphal /Mumbai /Patna/ New Delhi, January 26 (ANI): India celebrated 63rd Republic Day on Thursday with patriotic fervour as the governors of different states hoisted the national flag to mark the occasion. Manipur governor of Gurbachan Jagat unfurled the national flag and participated in the celebrations. In Mumbai, Governor Kateekal Sankaranarayanan inspected the guard of honour. Meanwhile, Bihar chief minister Nitish Kumar greeted the people on the Day.