Russia’s President Vladimir Putin, left, shakes hands with Prime Minister Manmohan Singh during the G20 summit in Los Cabos, Mexico. (AP photo)

Leaders of the G-20 and guests watch to India's Prime Minister Manmohan Singh, center, who arrived late for the family photo in Los Cabos. (AP photo)

China's President Hu Jintao, center, is left behind by other leaders of the G-20 including Prime Minister Manmohan Singh while they walk off the stage after posing for the family photo of the G-20 Summit in Los Cabos. (AP photo)

Leaders of the G-20, including Prime Minister Manmohan Singh pose for the family photo of the G-20 Summit in Los Cabos. (AP photo)

Leaders of the G-20 and guests pose for the family photo in Los Cabos. (AP photo)

Leaders of the G-20 and guests pose for the family photo in Los Cabos. (AP photo)

Prime Minister Manmohan Singh, left, stands with Mexico’s President Felipe Calderon as he arrives for the opening session of the G-20 Summit in Los Cabos. (AP photo)

Canada's Prime Minister Stephen Harper, right, and Prime Minister Manmohan Singh listen the opening speech by Mexico's President Felipe Calderon during the first plenary session of the G-20 Summit in Los Cabos. (AP photo)

Prime Minister Manmohan Singh, right, listens to one of his aides while attending a meeting with the leaders of the BRICS group in Los Cabos. (AP photo)

Minister Manmohan Singh departs from Los Cabos Mexico on Monday. (PTI)