vrata to get son putra prapti vrata as per puranas

 8.5.9 Putra-Prapti Vrata

This austerity commences on the eighth day of the bright half of the hindu month-bhadrapad.The rituals

consist of taking a 'sankalp' on the preceding day(saptami)and worshipping lord sri Hari on the next day

with appropriate rituals.Offerings are made to the sacrificial fire,which usually consist of articles like

barley,sesame seeds,ghee,etc.The austerity concludes by feeding the invited brahmins and making

donations to them.This way,the austerity continues for a year whereby a devotee observes fast on

'ashtami' of every month.A sonless person is blessed with a son if he observes this austerity with total

devotion .This austerity,which is popularly known as 'Krishna ashtami'also helps a devotee to become

absolved of gravest of sin.