Odesk.com is genuine. They will not ask for a rupee in advance from you. They will deduct a small fee from the employer and give most of earnings to you. You will also see the real earnings from work which are low around Rs.4,000 per month full time for data entry etc., not the false rates which cheats promise.
Like mturk is there any site which gives jobs to work from home. Simple tasks. For India I need and it should be genuine