Can I claim alimony in India if my husband has committed adultery? I am filing a case against him fo

You cannot criminally prosecute either spouse for 'adultery-(Supreme Court decriminalised Section 497 IPC in Joseph Shine v. Union of India). See Joseph Shine v. Union of India: https://indiankanoon.org/doc/42184625/. You do have civil/matrimonial remedies: file for divorce (adultery/cruelty grounds) and claim interim or permanent alimony under the Hindu Marriage Act, Sections 24 and 25 (texts and explanation). See HMA, Ss.24'25: https://indiankanoon.org/doc/192430907/. You may also claim maintenance from the husband under the BNSS (formerly CrPC Section 125) -BNSS Section 144 preserves the maintenance remedy; courts can order interim relief quickly. See BNSS S.144: https://thebharatiyanagariksurakshasanhita.in/chapter-10-order-for-maintenance-of-wives-children-and-parents/. If the husband is secretly earning or conceals income the courts routinely impute income, draw adverse inferences and award/alter alimony accordingly (see Shamima Farooqui v. Shahid Khan (maintenance principles) and Rajnesh v. Neha (guidelines on maintenance and awarding from date of application)); see Shamima Farooqui: https://indiankanoon.org/doc/189967724/ and Rajnesh v. Neha: https://sooperkanoon.com/case/1227614/rajnesh-vs-neha. Finally, a third party may face criminal liability under the Bharatiya Nyaya Sanhita (for example Section 84 BNS criminalises enticing/taking away a married woman with intent for illicit intercourse) if the facts show enticement/abduction; see BNS S.84: https://indiankanoon.org/doc/149679501/. In short: pursue family'court remedies (Section 24/25 HMA and BNSS S.144) and gather financial evidence (bank records, communications, proof of joint activity) so courts can impute income; criminal adultery charges are not available but BNS S.84 may apply to wrongful enticement.