Kandarpa Navami is an auspicious day falls in Ashada Month as per Hindu calendar. In 2018, Kandarpa Navami date is July 21. It is observed on Shukla Paksha Navami in Ashada Month.
It is observed as Bhadali Navami in North India and Central Indian parts like Jharkhand, Bihar, Uttar Pradesh, Madhya Pradesh and some parts of Gujarat.
It is believed that Lord Vishnu goes to sleep on Devshayani Ekadashi hence auspicious events like marriages, etc. cannot be done after Badli Nom. This is the last day for Hindu wedding Muhurats.
This vrata is not so popular and the vrata vidhi and puja procedure is not mentioned in any major Scriptures.