RAM SETU Story.

According to a legend, Lord Rama sent Hanuman to Varanasi (Kashi) to bring a Linga so that he could worship Lord Shiva before leaving for Lanka. However, soon after sending Hanuman to Kashi, Rama, anticipating that his prayer would get delayed, made a small linga of sand from the sea shore and worshipped it.
When Hanuman returned with a Linga from Kashi, he was upset to see Shri Rama already offering prayers. In a fit of rage, childlike Hanuman tried to destroy the Linga made of sand with his tail.
But his might couldn’t work against Lord Shiva, who had been invoked by Shri Rama in the Linga. The sand structure soon hardened and turned into stone and Hanuman fell a few feet away owing to the sheer force.
In order to pacify his dearest devotee’s anger, Lord Rama applied Kumkuma (sindoor) and ghee all over his body. On seeing Lord Rama’s compassion, Hanuman cooled down.
And to ensure Hanuman’s efforts don’t go in vain, Rama also worshipped the Linga brought by him from Kashi.