Does HRA Is Exempted From Income Tax?????

does HRA is fully exempted from income tax???????
If not, then what is the limit?????????

Dear Insomnia (are u suffering from sleeping pbm??, he, he)
HRA tax exemption:
HRA exemption - Actual rent paid minus 10% of your basic - will be eligible for tax exemption.
Pon

HRA is exempted in the following way :
1. a. In metro cities - 50% of Basic (Mumbai, Kolkata, Chennai and Delhi)
b. In non-metro cities 40% of basic
2. Actual HR received from company as a part of salary / remuneration.
3. Actual Rent paid minus (-) 10% of basic salary.
(basic Salary for this purpose is basic+DA forming part (+) commission on sale on fixed percentage)
Whichever is lesser from the above three (1 or 2 or 3) is exempted from income tax.