Return not filed

now there is no way to claim and file return

Yes you can file return. Normally such a return will be treated as Return Non Est ( i.e As if it were never filed). But you can make an application to the IT Authorities ( Depending on Quantum of refund - Commissioner/Chief Commissioner/CBDT). If you can show a genuine and valid cause why return was not filed in time, then there is a chance that the refund may be allowed. But it is purely discretionary n the part of the authiroties concerned and no appeal etc will lie against any refusal to issue refund