The Planning Commission today pitched for privatisation of coal mining saying government should have a consistent policy for energy sector as third party sale is allowed for petroleum and natural gas in the country. Speaking to reporters on the sidelines of a meeting in New Delhi, Planning Commission Deputy Chairman Montek Singh Ahluwalia said, the policy for energy sector should be consistent. He said private sector investment for third party sale is freely allowed in oil and natural gas. Mr Ahluwali advocated that it should be allowed for coal also.