Rules of itc

Claim pre gst registration input not possible.

Form ITC – 01 is required to be filed within 30 days of the person become eligible to claim ITC i.e. 30 days from grant of registration or opting out of composition scheme. Date immediately preceding the date when he becomes liable to pay tax. Date immediately preceding day when he opts to pay tax under regular mode.

You can claim it through ITC-01 within 30 days.