Deduction under income tax provision???

HI,

WHETHER SIMPLE INTEREST PAID ON      PREPAYMENT OF HOUSING LOAN & ALSO THE PRINCIPAL  AMT PAID IS

ELIGIBLE FOR DEDUCTION UNDER THE PROVISIONS OF THE INCOME TAX ACT,1961??(LET OUT PROPERTY)

what if  the property is a SOP/DLOP??

hope  i will  get a response soon...............

thx