Jatropha being a tropical plant, you can grow it any where in India. It requires minimum water and almost zero maintenance. It is already being mixed with regular diesel and petrol in India, for past one year. In the beginning it was at 10%, now gradually increased to 15%. It has made mandatory for all "Bharat III " stage vehicles.The seeds and saplings are available at all Horticulture department of respective states at a discounted price, in some states at free. You approach your nearest Horticulture department Officials and a visit to their nursery.They have prepared a booklet, which explains all the details, from procuring saplings to extraction. Including the manufacturers of required plants, like digester. etc.,As the cost of fossilised fuels are going up, the government is encouraging, the use of Bio supplements, apart from its Eco friendly nature. Presently there is very big gap between the supply and demand. As every day thousands of vehicle are being added, just imagine the total fuel consumption, and accordingly the requirement of Jatropha. You are also eligible for subsidy both from State and Central. The Banks also lend you money at a very low interest rate ( in Karnataka it is 4% PA ). You can also get get other benefits under Unemployed Graduate, back word area development, etc., I appriciate your interest. Good luck.