A death threat combined with abusive language is a serious matter, and you have clear, strong legal remedies available — this isn't something to underestimate or hesitate over.

The threat to kill you constitutes criminal intimidation under Section 351(2) and (3) of the Bharatiya Nyaya Sanhita, 2023 (corresponding to Section 506 IPC's aggravated form), since a threat involving death specifically triggers the enhanced punishment bracket of up to seven years imprisonment, a fine, or both, rather than the basic two-year provision, and this is a non-bailable offence given its seriousness. The abusive and vulgar language, depending on its specific content, can separately constitute intentional insult with intent to provoke breach of peace under Section 352 BNS (Section 504 IPC), and if the language was specifically sexual or targeted at you as a woman in a degrading manner, this could also invoke Section 75 BNS (sexual harassment) or, depending on specifics, provisions addressing insult to modesty.

Your immediate and most urgent step should be to file an FIR at the nearest police station without delay, since a death threat is a cognizable offence the police are obligated to register immediately under the mandatory registration principle established in Lalita Kumari v. Government of Uttar Pradesh (2014), discussed extensively throughout our conversation — there should be no room for the police to treat this as a "minor" or "personal" dispute not warranting registration. If you have any recording, screenshots, or witnesses to the threat, provide these immediately, since they significantly strengthen both the urgency of police response and the eventual prosecution.

Given the genuine safety concern a death threat raises, you should also specifically request the police to consider preventive measures, including potentially invoking Section 170 BNSS (the successor to Section 151 CrPC, discussed in an earlier response) if there's an immediate and credible risk he might act on the threat, and you can separately seek a protection order if there's any domestic or intimate relationship context, or approach the Magistrate for a peace bond against him under Section 126 BNSS (Section 107 CrPC), which specifically allows a Magistrate to require a person to execute a bond for keeping the peace where there's reason to believe they may commit a breach of peace or disturb public tranquility.

Given the seriousness of a genuine death threat, it's also worth taking practical personal safety precautions in parallel with the legal process — informing people close to you, avoiding being alone with him, and keeping your phone and evidence readily accessible — since the legal process, while important, takes time to unfold, and your immediate physical safety is the priority.

Conclusion: A death threat combined with abusive language gives you strong and immediate legal grounds — file the FIR right away under Section 351 BNS given the aggravated nature of a death threat, insist on registration since this is unambiguously cognizable, and consider seeking a peace bond or preventive police action if you have ongoing safety concerns. You can reach out to the team at Aapka Legal Advice for urgent guidance on ensuring your complaint is taken seriously and acted on promptly, and this list of Top Criminal Lawyers in India | Aapka Legal Advice can help you find a lawyer who can act quickly given the seriousness of your situation. If you feel you're in immediate danger, please prioritize your physical safety and contact the police directly without delay.