ISLAMABAD: Former interior minister Rehman Malik has urged Prime Minister Nawaz Sharif to apprise President Barack Obama about the “nexus” between Indian and Afghan intelligence agencies against Pakistan during his visit to the US.In a letter to the prime minister on the eve of his departure for Washington, the PPP senator also advised Mr Sharif to ask the US “to do more for Pakistan” which had suffered a lot in the war on terror.“This is no secret that India’s Intelligence Agency Research and Analysis Wing (RAW) is working in collaboration with the Afghanistan’s Intelligence Agency, National Directorate of Security (NDS), for creating instability and hostility in Balochistan and Fata,” Mr Malik says in the letter, a copy of which was released to the media on Sunday.