A fund manager is the professional (or team) at the AMC who decides what the fund buys and sells, within the limits of its mandate and SEBI category rules.
- Experience & tenure matter - a long track record across market cycles is more telling than one good year.
- Team vs star manager: team-driven processes reduce "key-person" risk if a star manager leaves.
- Check how the manager's other funds have behaved, and whether the strategy stayed consistent.