My insurance company in Kolkata rejected my claim without reason what legal action can I take

You can file a complaint before the Insurance Ombudsman in Kolkata if the claim amount is within 30 lakhs, or before the Consumer Forum under the Consumer Protection Act. Under West Bengal Premises Tenancy Act 1997 and IRDAI regulations, the insurance company must give a reasoned rejection within 30 days of the claim. You can also approach the Consumer Disputes Redressal Commission in West Bengal for deficiency in service. If the claim involves life insurance, the Ombudsman can award compensation up to the sum assured. If the Ombudsman or Consumer Forum does not provide adequate relief, you can approach the Calcutta High Court under West Bengal Premises Tenancy Act 1997 for further relief.