1) Don't let him incorporate the company for you. You need to incorporate the company yourself and then let him enter as an investor. Not sure about indian regulations though. 2) Have the investment agreements drafted by a lawyer who you choose, do not let him bring his own lawyer. 3) If you want to give him a board seat, pay close attention to his veto rights and negotiate them wisely. 4) DO NOT LET HIM MANAGE the company day to day operations, including bank account etc. Do not give him a signature right.
In my opinion after you negotiate the amount and valuation, you should incorporate the company, have an investment agreement drafted and then have him sign it. If you need help with the amount/valuation negotiation, fell free to hit me up via email.