late purchase invoice received for March month

1st confirm from seller , did he added same sales bill his gstr1 or not, nd if yes then add in march , take credit in april if u not availed,

How add in March it's received in April gst return has been filed

dear sir,

in books you will treat that invoice in marxh month only but since you have filed gstr return no need to worry about that
you can take input credit of that purchase invoice in next gstr 3b and gstr 1 is of outward supply

@ Mr. Karan Kumar.,

If You are maintain stock inventory (as per "RG23A") with day to day transactions then You ll book the Invoice in April and take the ITC in April...

In case you are not give importance for the inventory then You ll book the invoice in March and take ITC in April...

*Also check out the invoice if intra state or inter state. It's just an idea. Not in any rules***