Regarding income tax return

HRA CAN BE CLAIMED ONLY IF IT IS GIVEN BY EMPLOYER OTHERWISE YOU CAN CLAIM DEDUCTION FOR RENT PAID  AS UNDER:

Deduction under section 80GG for house rent paid:Deduction u/s 80GG is available if following condition are satisfied

• Deduction is available to Individual Assessee only.
• He has not received HRA(house rent allownace ) from his employer if he is a salaried person otherwise he should be self employed.
• He has paid house rent for his own residence.
• He or his spouse or his minor child or HUF(of which he has a member) should not have a residential house where he ordinarily resides or performs duties of his office or employment or carries on his business or profession;
• He should not have a house owned by him, which is under his occupation and value of that is not being taken as nil under section 23(2)(a) or 23(4).
• A declaration on Form 10BA should be submitted .

so if conditions are satisfied then he can claim deduction u/s 80GG for house rent paid

Amount of deduction:Least of the following is deductible u/s 80GG

1. Rs 2000 per month for the Assessment year 1987-88 onwards.
2. 25 % of total income
3. the excess of actual rent paid over 10 % of total income

Read more: https://www.simpletaxindia.net/2009/01/hra-exemption-to-pensioners-meaning-of.html#ixzz20yVjHL74

ALSO U CAN TAKE CREDIT OF TDS DEDUCTED BY EMPLOYER.