Input claim disallowed

At present you cant do much. The amendment made by you was late. A better alternative would have been for your debtor to claim ITC in old and generate invoice to new thereby transferring the ITC but since you have made amendment and it is late no ITC can be claimed by your debtor in either of its registration.

Better engage a proper professional to guide you in such matters before matters get out of hand.

With this budget more restrictions on ITC are proposed to be implemented.