Family rent is still rent
Letting to a relative does not change the tax: the rent you receive is taxable as house-property income, with the municipal-tax, 30% and interest deductions. The family relationship doesn’t make it exempt, but it also doesn’t make it worse — the normal rules apply if the arrangement is genuine.
Don't charge a token rent
The risk is charging an unrealistically low rent to a relative to reduce tax. The department can substitute a deemed market rent where the actual rent is below what the property would reasonably fetch. So charge a fair market rent, document it with an agreement and bank transfers, and the income is accepted. Keep evidence the rent is realistic.
A worked example
Example: you let a flat to your brother at ₹20,000 a month (a fair rate) — ₹2.4 lakh of rent, taxed after deductions. This can pair neatly with him claiming HRA if he pays you, similar to the rent-to-parents arrangement. But charging ₹2,000 for a flat worth ₹20,000 invites a deemed-rent adjustment. Our team can set it up defensibly.