Shah, who handed the reins to Nadda, urged all the BJP workers to help their new party chief in strengthening the BJP.
The Centre on Friday announced that the Citizenship (Amendment) Act or CAA has come into force from January 10, 2020.
The Citizenship (Amendment) Bill passed in the Lok Sabha on Monday night after a daylong debate and heated exchanges between Amit Shah and Opposition MPs.
Hard Kaur has spewed venom against India in the context of the removal of the controversial Article 370.
Former Health Minister JP Nadda has been appointed as the working president of the Bharatiya Janata Party. He has been elected as Amit Shah has now taken charge as Union home minister.