महाभरणी

Timing Bhādrapada (भाद्रपद) māsa, Bharaṇī nakṣatra, at अपराह्णः (vyaapti tithi rule)

भरणी प्रेतपक्षे तु महती परिकीर्तिता।
अस्यां श्राद्धं कृतं येन स गयाश्राद्धकृद्भवेत्॥ इति मात्स्योक्तेः।

Bharanī (nakṣatra) during Pitṛpakṣa is considered highly significant. By performing Shraaddha on this day, one attains the fruit of having performed a Gaya Shraaddham (as told in Matsya Purāṇam).