Thousands of Student performing Sun Salutation accross the country on RathSaptami on 18th February 2013, which is Birthday of Swami Vivekananda's Guru Thakur Shri Ramkrushna Paramhansa.
Ref : http://www.vivekananda150jayanti.org/content/mega-suryanamaskar-event

Nagaland is joining the Nation in this Grand Celebration of Swami Vivekananda 150th Birth Anniversary on 18th February 2013 at 10am.

Surya Namaskar