After an encouraging response to the first phase of the bio-diesel extraction project, the Council for Scientific and Industrial Research (CSIR) is looking to tie-up with a number of players for the second phase. It is in talks with companies such as Tata Motors and Indian Oil to take its project to the next stage. ''We are talking to Tata Motors for testing its vehicles on bio-diesel developed from the Jatropha plant. Besides, we are in touch with Indian Oil for studying our new alternative to diesel,'' said CSIR Director General, Dr R. A. Mashelkar, at a press conference. Two Mercedes Benz cars, which were successfully test driven on bio-diesel for more than 5,000 km, were display in New Delhi.