You must be aware of buying selling stuff online using some platforms such as OLX Quikr. You can register on these websites upload your old stuff for sale and you can get money if someone purchases that. Similarly you can buy as well. You can actually do business by buying from OLX/Quikr then sell the same product with some modifications if required. I have heard many people doing that earning somewhere b/w 20-30K a month. Not bad, Right!