The explosive, however, remained "undetected" during the demining exercise conducted a day before the attack on Wednesday, they said.
Three youths from Pune, who were allegedly abducted by Naxals while they were on a bicycle rally to spread the message of peace, have been released by the rebels in Chhattisgarh's Sukma district, police said.
Naxalites blew up the mini-goods van in which the security personnel were travelling by using an Improvised Explosive Device (IED), police sources said.
An AK-47 rifle, one SLR, three Insas rifles and a .303 rifle were also recovered from the encounter spot.
Three Naxals, including two women, were on Saturday gunned down by security forces at two different places in Chhattisgarh's insurgency-hit Bastar division, taking the total number of ultras killed in separate gun-battles in the region this month to 21.
She also alleged that police has been forcing some people to name them in someway since May.
a group of armed insurgents opened indiscriminate fire on the security officials, triggering a gun-battle between the two sides.
The face-off between a compact team of District Reserve Group and ultras took place in the forested hills of Metapal village, Dantewada Superintendent of Police Kamlochan Kashyap told PTI.
CRPF troopers confront loneliness, poor network connectivity, poor work conditions, dismal work-life balance, and immense psychological stress.
The complainant had claimed that Sundar and others had visited Nama village and asked Shamnath to support the naxal cause
An FIR was lodged against DU Professor Nandini Sundar for the murder of Shamnath Baghel, based on the complaint of his wife on Saturday.
In a major joint offensive, separate joint teams of security forces, comprising over 2,000 personnel, had launched an anti-Naxal operation from Bijapur and Sukma districts in the South Bastar forests, considered as the Maoist stronghold, on Friday night.
Officials said while two commandos, identified as constables Linju N and Fateh Singh had succumbed to their bullet injuries on Thursday, their collegaue Lakshman Singh died on Friday.
The deadly Maoist ambush, claiming the lives of 14 Central Reserve Police Force personnel in Chhattisgarh's Sukma district, was planned and supervised by local Naxal leaders who were reportedly camping in south Bastar for past few days, a senior police official said on Tuesday.
Laxmi Sorte and Kaustav Ghosh, who travelled across 29 Indian states and five Union territories in 101 days, recommend a list of lesser known places in India to add to your travel bucket list.
A cache of weapons was recovered from the encounter site
On the itinerary: Luxury camping, tribal homestays, heritage cities.
Six security personnel were killed and eight injured in back-to-back attacks by Naxals in insurgency-hit districts of Chhattisgarh, which has seen a string of strikes by the red ultras in the past three days.
Hidma Madavi, who had a Rs 12 lakh reward on his head, was arrested without a single bullet being fired.
This is the fourth IED blast triggered by Naxals in Chhattisgarh in the last 15 days.
Avenging the Sukma attack, security forces claim to have gunned down 12-15 Maoists in Chhattisgarh's Basaguda-Chintalnar area on Sunday.
She had got 849th rank in the 2014 civil services exam and was allotted the Indian Revenue Service (Customs and Central Excise).
'The category of crime and criminals called Maoist or Naxal or #UrbanNaxals is an illegitimate creation of right-wing propaganda media frenzy.' 'It is a fiction repugnant to the Constitution and the law of the land,' argue Vernon Gonsalves and Arun Ferreira.
On display was India's military might and cultural diversity.
All Naxal-affected states demonstrate police as well as governance incapacities. Odd occasions of success and temporary dip in Naxal violence notwithstanding, the states have utterly failed to dominate and make their presence felt over areas under the extremist domination, says Bibhu Prasad Routray.
The National Innovation Foundation India (NIF), Ahmedabad shared the ideas that shined at the IGNITE 2015.
The roots of the problem lies in the alienation of the tribals. Extreme sensitivity is required to tackle the issues involved. Rough and ready methods of using force may prove counterproductive in the long run, says Colonel (retd) Anil Athale.