New Delhi/Nagpur, Jan 26 (ANI): Bharatiya Janata Party (BJP) president Amit Shah hoisted the national flag at party headquarters in New Delhi on the occasion of India's 67th Republic Day. Rashtriya Swayamsevak Sangh (RSS) Chief Mohan Bhagwat too hoisted the national flag in Nagpur. National Anthem was sung by all the respective party members when the tri-colour was hoisted.