Before replying you should have understood in details about Kasargod, Belgaum.
Kanyakumari which was supposed to go Kerala was handed over to Tamil Nadu. To compensate Kerala, Kasargod was handed over to Kerala.
With regards to Belgaum, Mahajan Report which was prepared by Mahajan (himself being a Maharashtrian) has confirmed that Belgaum should go to Karnataka.
With regards to peace & non-violence, the whole world knows who assasinated Rajiv Gandhi