My relative died in Kurnool police custody with injury marks. How do I seek justice and compensation?

Custodial death violates Article 21 and the Supreme Court guidelines in Nilabati Behera (1993) and D.K. Basu (1997) require mandatory judicial inquiry, intimation to the NHRC within 24 hours, and compensation. File an FIR against the responsible police officers under Section 103 BNS, 2023 (murder) and Section 104 BNS (causing death by negligence). Inform the NHRC, State Human Rights Commission, and the DGP in Andhra Pradesh. Approach Andhra Pradesh High Court under Article 226 for a writ directing an independent investigation, CBI probe, and compensation. The body must be preserved for a post-mortem by a forensic team as evidence. Preserve the injury photographs, post-mortem report, and witness statements. Refer to Andhra Pradesh Rent Control Act 1960 for any state police accountability statute in Andhra Pradesh.