Landlord illegally demanding extra security amount?

-We are staying in Electronics City, Bangalore and paying Rs 24,400 for a 3BHK having deposited Rs 1,00,000 as security -Our landlord came to our flat 2 weeks back and said that he is increasing the security amount from Rs 1 to 1.5 Lakh -On challenging him as per new Karnataka Housing Act that he cannot keep more than 2 months of security he said you either vacate the property or accept the increase in security amount -When we asked for a legal notice, he refused to send us -On educating him with the rights of tenants,he is being adamant and refusing to listen -When we asked him to settle