Complex sentence: Nandgaon is a religious place due to its attachment to the lord Krishna, as it is believed that Krishna spent his childhood here and few traces of his childhood which are mentioned in the granthas are found here.
Split into simpler sentences: Nandgaon is a religious place due to its association with the lord Krishna. It is believed that Krishna spent his childhood here and a few traces of his childhood which are mentioned in the Granthas are found here.