Don't do this ever telling you from personal experience. Always invest your money only. Doing a business via loan would be different, but investing via loan is not at all a good decision.
Don't invest in equity funds. The market is already at a very high level, and if it falls now, it will take time to recover. So, it's better you invest in debt funds.
You want to invest 4000 rs for a month and want a profit 400, which is 10% per month. I don't want to give you false hopes. but that is something will be based on your luck.
Investing in direct stock would be fruitful for those who have knowledge about the stock market. Otherwise, it can be loss-making, too. Hence, mutual funds are better who have no knowledge and want to invest money.