09 April 2013
Presuming the payment of rent is for commercial purpose and you are claiming as an expenditure in your Account, you are required to deduct the TDS as according to the provisions of Sec. 194 I , even individuals covered u/s 44AB are required to deduct tds.
Further to add that you have mentioned that you are paying rent in your personal name, in fact the properitor has to file the income tax return on the PAN allotted to him in the capacity of individual as the proprietor and the proprietorship firm are not separate entity as per income tax.