Such a decayed (ksaya) month can occur only in the months near the Earth’s perihelion passage.
In compensation, a month in the first half of the year will have had two New Moons, so the year will still have twelve lunar months.
During the waxing phases, tithis are counted from 1 to 15 with the designation Sukla.
Each lunar month is given the name of the solar month in which the lunar month begins.
Because the Earth’s orbit is elliptical, the lengths of the months vary from 29.2 to 31.2 days.
The short months all occur in the second half of the year around the time of the Earth’s perihelion passage. Jaisalmer, Rajasthan, India Camels and riders of the Indian Border Security Force perform a riding exhibition in front of Jaisalmer Fort.
The Calendar Reform Committee attempted to reconcile traditional calendrical practices with modern astronomical concepts.
According to their proposals, precession is accounted for and calculations of solar and lunar position are based on accurate modern methods.