According to the Hindu calendar, Raksha Bandhan 2025 will be observed on August 9, but the timing of tying the rakhi is crucial. In many Indian cities, including Mumbai, Patna, New Delhi, Bengaluru, Kolkata and Ahmedabad, the Rakhi tying shubh muhurat will begin after the end of Bhadra Kaal, a period considered inauspicious for starting auspicious rituals.