Housing Loan

you can take deduction of interest 1.50 Lakh  only for one self occupied house ..

Yes.  For self occupied House  property the limit for interest claimable is Rs 150,000. And for let out or deemed to be let out HP there is no limit for interest claimable. The loan can be of different banks. There is no restriction under the IT Act

Principal paid on housing loan can be claimed under Sec 80C up to the total limit of Rs1lacs only whether one house or more than one house