When Shankhachuda reached his capital after marrying Tulsi, he was crowned as the king of the demons by Shukracharya. After his coronation, Shankhachuda attacked Indrapuri supported by his huge army and defeated the deities. In a very short time all the three worlds were under his control.
After being defeated by Shankhachuda, the deities went to lord Brahma and sought his help in eliminating the menance called Shankhachuda. Lord Brahma then took them to lord Vishnu. All of them were taken to lord Shiva by Vishnu. They expressed their request to liberate them from the troubles created by Shankhachuda.
Lord Shiva assured the deities that he will certainly kill Shankhachuda and hence they should not worry about him. The deities then happily returned to their respective abodes.
Lord Shiva sent his messenger named Pushpadant, to Shankhachuda to ask him to return back the kingdom of the deities to them. Shankhachuda refused to oblige this demand, on the contrary he expressed his willingness and readiness to fight lord Shiva. Pushpadant returned back and narrated the whole story to lord Shiva.