In case of reconstitution of partnership firm who will be liable to pay tax, interest or penalty

Without prejudice to the provisions of section 90, all the partners of the firm prior to the date of reconstitution and after the date of reconstitution shall jointly and severally, be liable to pay tax, interest or penalty due from firm which is reconstituted, for any period before its reconstitution.

(ICAI FAQ PUBLICATIONS 06-09-2017 Liability in other cases : FAQ NO. 18)