Look it is very obvious that anyone who runs a business will definitely promote it aggressively and claim it to be the best.But there is a statement that is made after a promotion that reads "Mutual Funds Investments are subjected to market risks,kindly read the offer document before investing".
Always do some amount of market research and a bit of discussion with associates who are into the investing part,if possible hire a professional so that he can guide you with the investments.
The rest will be fine.