Foreign Secretary S Jaishankar has written a letter to his Pakistani counterpart suggesting ways to expedite Mumbai terror attacks trial. <br/><br/>Briefing media in New Delhi, External Affairs Ministry spokesperson Vikas Swarup said Pakistan is yet to respond to the letter which was delivered on 9th of this month.<br/><br/>He said the Foreign Secretary wrote the letter to expedite trial through co-operation through legal channels as the guilty have not been brought to book even after eight years. <br/><br/>Replying to a query on Balochistan, the spokesperson said India will keep raising the issue till repression and human rights violations continue.