Rishi Panchami kab hai: Rishi Panchami 2026 will be observed on Tuesday, September 15, with devotees worshipping the Saptarshi, or seven revered sages, through prayers, fasting and traditional rituals. The Panchami Tithi begins at 7:44 AM and ends at 8:59 AM on September 16, while the main puja muhurat runs from 11:02 AM to 1:30 PM.