Itr

He should show 3 houses seperately with respective municipal taxes paid , respective rents paid and maintenance cost  [if applicable] .

following Pdf file can be read/down loaded to see various illustrations.

https://www.incometaxindia.gov.in/tutorials/income-from-house-property-practical.pdf

This 52 page Tutorial is excellent with various illustration. Even an ordinary tax payer having little knowledge of taxes and accounts can understand this.

Plz read and revise return if possible. 

All the houses have to be showwn seperately. I second S.Shiroor Opinion

Thanks for quick reply.to mr S. Shiroor

I would like to give better clarity on the information given by me earlier.

The 3 houses situated in same building in different floors and the property tax is paid on an the entire building not for the each house separately and the loan taken is for entire building not for each houses. Does it required to divide the entire property tax paid into 3 portions and how to allocate the interest amount.