Raksha Bandhan festival is celebrated as Pavitropana in Gujarat. Gujaratis are great followers and devotees of lord Shiva, hence on this occasion they offer prayers to lord Shiva.
Gujaratis pray to lord Shiva throughout the year and offer holy water to him after the daily prayer. The day of culmination of these yearly prayers is Shravan Purnima. Rakshabandhan occurs on the day of Shravan Purnima. This is considered auspicious for the final puja (prayer) of the three eyed God (lord Shiva).
On this day, people pray to lord Shiva to seek forgiveness for their past mistakes and sins. This ceremony is called as Pavitropana. In the ceremony a few twisted threads of cotton are drenched in panchagavya (a mixture of cow ghee, milk, curd, urine and excreta) and then wrapped around the Shiva Lingam. The twisted threads of cotton are immersed in the panchagavya for purification.
This occasion is very similar to the occasion of Nariyal Purnima in its procedure of performing prayers.