Rocky is the love interest of Shivangi in the second season of naagin who later revealed to be a naag of Takshak clan.
Rocky is the son of Mahendra Pratap Singh and Vasudha Singh(Takshak royal naagin )who left her world for the love of her life.Vasudha was also a good friend of Ritik and Shivanya(Shivangi's parents).When Rocky was just a child his father and uncle used to be thugs ,criminals and when Vasudha learnt that she asked Ritik to hand over Rocky to some other couples and Mahendra accidentally kills his wife,Vasudha.Ritik handed over Rocky to one of his friends who were the members of Nikunj family.After few years Yamini finds out the Nikunj family and kills the foster parents of Rocky with the help of their own maid Uttara and became the head of the Nikunj family.Yamini used to act as a well wisher of Rocky since then and Rocky started to trust her blindly.
Rocky met Shivangi in Songadh and fell in love with her.For Shivangi Rocky broke his engagement with Ruchika aka naagin Shesha .During his wedding with Shivangi,Nidhi tricked Rocky and left him unconscious and wore his groom's outfit to trick Shivanya and Shivangi.Nidhi as Rocky with other seven killers killed Shivanya and made Shivangi think that it was Rocky who killed her mother. After the murder of Shivanya,everybody thought that Shivangi was also dead and arranged Rocky's marriage with Ruchika once again but instead of Ruchika he got married to Shivangi who came back to take revenge of her mother's and her family's death as a suryavanshi naagin .
Rocky's love for Shivangi made her rethink about him and when she learnt Rocky to be innocent then both of them fell in love with each other once again.
When Shivangi turned Ruchika into stone Infront of Rocky.Rocky thought her to be his enemy and spent a night with her to snatch her naagin powers as he thought himself to be human unaware of the fact that he is the Takshak naagraj.After the night Rocky handed over Shivangi to the police and started to hate her.
During Rocky's 27th birthday Rocky completely transformed into a naag and started to see his real mother in his dreams .He joined Takshika aka Shesha to deafeat Shivangi who was still a naagin but from sheshnaag clan but when he learnt the truth about Yamini and Shesha he joined Shivangi to kill them.When both of them finally killed Shesha Rocky killed Shivangi because of the orders of Shivangi's own father,Ritik which ends the second season of naagin.
Rocky and Ritik became partners in the business and were brought to mysterious temple by Shravni(Serpent queen) and Vishakha where Shivangi also returned to protect naagmani from evil hands.It was revealed there that two headed black serpent Shesha took the forms of Ritik and Rocky and tried to killed Shivangi in the past.Real Rocky was actually trapped by Shesha along with old man Ritik.Mahir freed both of them .Rocky and Shivangi met once again and decided to live together forever.