Wrong tds deduction

I am a senior citizen and i have submitted 15H form to bank well in advance but dueto bank's mistake my TDS deduted from FD interest in financial year 2010-11 .

can i submit ITR for refund of above TDS before 31st JULY 2013

and if yes then how can i get my refund ?(provided i have not submitted any ITR in  previous years because my income is not in tax limit.)