Imphal, 28 July 2016 ( Evening News) : India has asked Myanmar to act against four top leaders of National Socialist Council of Nagaland-Khaplang (NSCN-K), including its chief S.S. Khaplang, accused of the ambush on an army convoy in the state in June last year. According to the The Hindu newspaper, the message was conveyed to a Myanmar delegation, led by Deputy Minister for Home Affairs Major General Aung Soe. The team is on a two-day visit to New Delhi. After the Myanmar-based NSCN-K abrogated the ceasefire agreement with the government in March 2015, it has launched a series of attacks on security forces in Nagaland, Manipur and Arunachal Pradesh. Besides Khaplang, the other NSCN-K leaders against whom India has sought action are Niki Sumi, Kirichu and Asang. They are believed to have planned and supervised the ambush in which 18 soldiers were killed. Since India and Myanmar do not have an extradition treaty, India’s request to hand over the 4 leaders was revised this time. The NSCN-K has a ceasefire agreement with the Myanmar government. SS Khaplang, a Naga from Myanmar, was undergoing treatment at a hospital in Yangon till a few months ago. He is learnt to have shifted to his base in Taga, considered a haven for anti-India insurgent groups, in north-western Myanmar. The Ministry of Home Affairs said in a statement that at the meeting, security issues, including cooperation to check the activities of insurgent groups along the international border, drug trafficking, smuggling of arms and wildlife articles and exchange of intelligence were discussed.