Port Blair, Nov. 18: The Kesariya Hindu Vahini and Hindu Sewa Sangh have extended their greetings and good wishes to islanders celebrating Chhath Puja. Chhath Puja is the only festival that is dedicated to the Lord Surya, who is supposed to be the source of all powers. May the occasion of Chhath Puja light up new hopes and opportunities in islander life and fulfill all dreams, said a communication.