Housing loan interest exemption limit / hra information

1]. Maximum limit is 1.50lacs inclusive of pre-emi interest

2]. Yes he can claim HRA subject to the overall limits as laid donw in section 10(13A) i.e. leat of the below

a] HRA recd during teh eyar

b]. Rent paid in excess of 10% of salary

3]. 40% of the salary

I have few query mentioned below

1 / - HRA Calculation -

If Basic Salary is 300570 (annually) (Apr to Jun - 24350/month and Jul to Mar - 25280/month)

HRA Paid for FY 2012-13 is 134694 (annually)

Rent Paid is 180000 (annually)

What will be my exemption for tax u/s 10 from Salary ?

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2 / - Do Arrears HRA also needs to be clubbed in current HRA

Current HRA - 134694 and Arrear - 8433

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3 / - I am also getting rebate of interest paid on house loan i.e. 150000/- (Max Limit)

Is there any limit on HRA if availaing this ?

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4 / - In my form 16 it is showing incorrect amount, how do I get this rectified and what documents do, I have to provide if I am doing e-filling online ?

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Rgds