If you invest in HDFC mutual fund it will benefit HDFCAMC. The benefit will depend upon the type of fund you use.
Debt funds have low expense ratio than equity funds.
In equity funds, the expense ratio increase in following order
- Index fund etf
- Index fund
- Balanced fund
- Large cap equity fund
- Mid to small cap fund
- Sectoral fund
- International funds
Mutual fund direct plans will have lower expenses than regular plan due to saving from distributor fees. The fund house will however gain the same amount.
If you invest directly in stocks (direct equity) or mutual fund of any other fund house it will not benefit HDFCAMC.