When is Raksha Bandhan celebrated in India as per the Hindu calendar?

Poornima, Shravan month

The correct answer is Option (4) - Poornima, Shravan month

Raksha Bandhan is celebrated on the Poornima (full moon day) of the Shravan month as per the Hindu calendar.

• Raksha Bandhan literally means "bond of protection." It is a festival that celebrates the bond between a brother and sister.
• Shravan is the fifth month of the Hindu calendar, which typically falls in August.
• Poornima is the 15^th day of the lunar month, when the moon is full.

On this day, sisters tie a rakhi (sacred thread) on their brothers' wrists as a symbol of protection and love. Brothers, in return, give their sisters gifts and promise to protect them.