The team, mandated to guard the workers engaged in construction of a road in Sukma district, used to visit the site every day for last couple of days taking the same route, violating one of the cardinal principles of not taking a beaten track in the anti-Naxal operation theatre, officials said.
The movement of the security personnel seemed to have been monitored by the Maoists, who got ample time to organise a well-coordinated plan to carry out the audacious attack early this morning, killing 16 people including 11 of the CRPF.