
Since the Moon phase calendar or the tithi calendar is synchronised with Sun, we need to see the tithi when the Sun returns back to the same sign after a year and the exact amount of the birth tithi has elapsed. Thus, the start of a year needs to be reckoned from the time when the exact portion of tithi commences again after a full cycle of Sun in the zodiac. However, from time immemorial the scholars and pundits of India used the Tithi based calendar to reckon time, since the time needs to be reckoned from both the luminaries, as they represent two different aspects of our self. Vedic astrology widely uses the solar return chart or the surya varsha pravesh chakra to predict the event of a year and this is widely known as Varshaphala.

Tithi pravesh chakra is one of the cornerstones of Vedic astrology and was hidden in tradition of SJC until the knowledge was given out by Pt.
