My partner, from Nigeria, and I lived together for 2 years and 8 months. Now, he’s gone without any explanation. Can I take legal action against him?

Indian law does not recognize common-law marriage. You cannot take legal action against your partner for leaving the relationship, as there’s no legal basis for a claim. You may explore options for recovering any shared property or financial contributions through civil litigation, but the outcome will depend on the specific circumstances and proof presented.