India has entered into an agreement with the US for co-operation in energy and related environmental areas for boosting private sector ventures and sustainable development. The joint declaration, signed by US secretary of energy Bill Richardson and India's external affairs minister Jaswant Singh, seeks to strengthen ties in conventional energy, renewable energy, clean coal technology and efficiency. India's energy minister, P.R. Kumarmangalam, says the government will soon sell some of its transmission lines to private investors as part of the second phase of reforms. "To encourage greater competition in the domestic energy sector, we will soon put grid lines and generation stations in the market place."