Prime Minister Manmohan Singh on Saturday said India is looking forward to building on the strategic dialogue with the US and seeking greater cooperation in areas such as trade and investment, services, energy, science and technology and defence.

"The last several years have witnessed a transformation in India-US relations. Today, they are characterized by greater maturity, depth and convergence of interests," Manmohan Singh said in his departure statement before his four-day trip to Washington as the first state guest of the Obama White House.