06 January 2013
If there is no tax liability in AY 2010-11, there is no problem. . Fortunately, you can not file the return for AY 2010-11. . File the pending returns of AY 2011-12 and AY 2012-13 to make the fortune. .
15 January 2013
As per the Income Tax Act you cannot file your return for the Assessment Year 2010-11 now as you have failed to file your return either u/s 139(1) or 139(3). In case you receive any notice u/s 142(1) or 143(2) then it can be filed. In case there is refund then you can file the return claiming the refund. This return can be physically filed. To be on safer side if there is any tax payable then pay the tax with interest and file the return physically. You may get notice u/s 147 for regularisation of this return.