Vishnu vratham, a vrata dedicated to Lord Vishnu, is performed in Pushya masam. It begins on Shukla paksha Pushya vidiya (second day in Pushya masam as per Telugu calendar) and ends on Panchami day. In 2016, Vishnu Vratham dates – begins on January 11 and ends on 14 January.
During the vrata, devotees observe fasting in day and take meal at night. Lord Vishnu is worshipped with Shodashopacharas and Ashtottaras during Puja.
Devotees visit Vishnu temples and chant Vishnu Sahasranamam, Vishnu Puranam, Bhagavatham, etc.
In 2014-2015, Vishnu Vratham dates – begins on December 22 and ends on December 25.
In 2014, Vishnu Vratham dates – begins on January 2 and ends on January 5.
In 2013, Vishnu Vratham dates – begins on January 13 and ends on January 16.