My in-laws in Kolkata are demanding more dowry what should I do

Dowry demands are illegal under Section 3 of the Dowry Prohibition Act, 1961, and cruelty for dowry is punishable under Section 85 of the Bharatiya Nyaya Sanhita, formerly Section 498A IPC. You should file a complaint at the nearest police station in Kolkata or with the Crime Against Women Cell in West Bengal. Document every instance of demand with dates, witnesses, and any communication as evidence. You can also seek protection under the Domestic Violence Act for a residence order and monetary relief. If the local police do not act, you can escalate to the Calcutta High Court under West Bengal Premises Tenancy Act 1997 for a direction to register the FIR.