Polling began to elect 60 members to the ninth Meghalaya Assembly from among 345 candidates on Saturday with an electorate of 15.3 lakh.
Five militants were killed in an encounter with the police at Cleave Colony in the heart of Shillong on Tuesday.
'I have put forth my papers, after due consultation with my party leadership, to allow a free and fair probe into the killing of Chesterfield Thangkhiew', Meghalaya home minister Lahkmen Rymbui said
While the banned Hynniewtrep National Liberation Council has suffered a series of blows in the past few days, allegations of a nexus between the militants and NGOs have created a flutter among the society.
A person was also arrested in connection with the blast that took place on Sunday evening at the entrance of one of the shops at Police Bazaar, he said.
The Border Security Force has handed over a list of 66 camps of north-east insurgents to the Border Guard Bangladesh, seeking actions against them.
A 'beef party' and a bandh greeted Bharatiya Janata Party president Amit Shah who visited the state on Wednesday as part of his north-east tour seeking to strengthen party base and urging workers to make public the alleged corruption by ruling Congress party in Meghalaya.