India will soon start a market based emission trading system to check the industrial pollution. The Environment Minister Mr. Jairam Ramesh said in New Delhi that the system will be implemented first in Gujarat and Tamil Nadu. He said these states contain critically polluted areas with many large industries. Mr. Ramesh asserted that this pilot scheme can serve as a model for future environmental regulation in the country. It will also help industry to benefit from potential tie ups with global emission trading systems. The Minister said that it is important to look into the changes required for the existing legal system of pollution regulation to enable emission trading. AIR correspondent adds that government has initiated a nine point action plan to address the challenges of climate change.