Sarvapati Saptami or Nikshubharka Saptami is observed on Krishna Paksha or Bahula Saptami in Magha month as per Telugu, Kannada, Marathi, and Gujarati calendars. In 2011, Sarvapti Saptami date is February 24, today. The detailed information about the above vratas is mentioned in ‘Chaturvarga Chintamani’, a standard text for Hindu vratas and pujas.
It is also auspicious to worship Lord Subramanya on 24 February as it falls on Visakha nakshatra. Visakha nakshatra is the birth star of Lord Subramanya swamy.