The NCLT rejected my oppression petition in Kolkata; how do I file an appeal before the NCLAT and within what time limit?

You may file an appeal before the National Company Law Appellate Tribunal (NCLAT) under Section 421 of the Companies Act, 2013, within forty-five days from the date of the NCLT order, with a condonation application if the delay is justified. The appeal must be filed in Form NCLAT-1 along with the impugned order, a certified copy, and the prescribed fees. The NCLAT has powers to hear the matter afresh and may remand it back to the NCLT for fresh consideration. You should verify whether any interlocutory orders from the Calcutta High Court affect your appellate rights under the relevant West Bengal Premises Tenancy Act 1997. Legal representation before the NCLAT is mandatory for companies but optional for individuals. The NCLAT may grant a stay of the NCLT order pending the appeal upon appropriate conditions.