Narain Karthikeyan’s preparation for the Formula1 Grand Prix of India is very much on.  After having driven at Singapore on Friday, Narain will now drive the HRT F1 car on Friday practice at the GP of Japan this weekend.  HRT is sponsored mainly by the Tata Group and Narain has also secured the sponsorship of Hero MotoCorp for the Indian GP.  Narain wants to acquit himself well before his country men.