US President Barack Obama has said that America was engaging Pakistan over the issue of rein in terror groups like the Laskhar-e-Taiba.<br/><br/>Obama said this, after meeting Prime Minister Manmohan Singh who highlighted the continued threat of terrorism emanating from Pakistan and that country's lack of will to punish those responsible for 26/11 Mumbai terror attacks.<br/><br/>Dr. Singh, who met Obama on Sunday night, said India was looking for a convincing action by Pakistan against the perpetrators of Mumbai attacks and made it clear that the future of South Asia would be determined by the manner in which terrorism is tackled in the region.<br/><br/>The Prime Minister also voiced apprehensions about misuse of US military supplies to Pakistan, prompting Obama to assure that India's concerns in this regard would be kept in mind while dealing with the issue.<br/><br/>The US President also told Prime Minister Manmohan Singh that the US was supportive of India's request for access to Mumbai attacks accused Lashkar-e-Taiba's David Headley and it was working through legal systems on the matter.<br/><br/>During the 50-minute meeting at the Blair House, Singh and Obama discussed a whole range of bilateral issues, besides Pakistan, situation in Afghanistan and global economic crisis.