How can i get maximum benifit from stock market with minimum investment?

There is no easy answer to the question, but you should avoid things that have excessive fees or expenses. The rest of the market is subject to risk, and only you can decide what you can tolerate.

If you only have a little to invest, I would recommend focusing on mutual funds so you can at least get a little diversity on your investment.

Well, it depends somewhat on your appetite for risk.

You can do things like day trade or use options or CFDs (contracts for diffrence). All of these are leveraged, which means you only need a fraction of the upfront capital (i.e. a minimum investment).

This means if you choose wisely, you make lots of money. If you choose badly, you lose lots of money. A high-risk but high-return strategy.

But these are not for the beginner in the stock market. If that's your situation, look for a "blue chip" stock and buy it for the long-term. When you receive dividends or save more, buy more. Start with investing for the long-term and, and as you gain experience, start to look for short-term possibilities to boost your returns.