Declare as self occupied house

i have only one flat in my name in nagpur and my place of service is also nagpur.

but i am staying in staff quarters. and my flat is lying vacant. i have taken home loan for the purchase of fully constructed flat.

can i declare the flat as self occupied and show the annual income  on the property as nil and claim interest of rs.140000 paid on home loans though it is lying vacant.

or whether i have show some rent on it though it is vacant.