The police said that Naxalites exploded a bomb near a culvert in the forests of Gumla district, but there was no casualty or damage.
The incident took place near Dodipadar village when a DRG team was returning after an anti-naxal operation on Wednesday evening.
Around 30 policemen, including Choubey, were killed in ambushes and landmine attacks by Maoists in three separate incidents in Madanwada and nearby areas in Rajnandgaon on July 12, 2009.
NCP's Gadchiroli unit president Ravindra Wasekar said Ramchandani will be sacked from the party.
In retaliation, Naxals attacked the Karnataka State Reserve Police battalion in Venkammanahalli in Tumkur district five days later and killed seven KRSP personnel and a civilian.
Nine CRPF personnel were killed and two others wounded after Maoists blasted their mine-protected vehicle (MPV) using over 50 kg of explosives in the Kistaram area of the Maoist-hit district.
Maoists today torched the wreckage of the Mine Protected Vehicle that was blown up by them yesterday in Chhattisgarh's Sukma district, police said.
Nine CRPF personnel were killed in Sukma district after suspected ultras blew up their Mine Protected Vehicle (MPV).
Ahir visited the camp of the Chhattisgarh Armed Force here this morning and paid homage to the nine CRPF personnel killed yesterday after Naxals blasted their mine protected vehicle in Sukma.
Here is a timeline of major naxal attacks on armed forces in Sukma that will help get a better understanding of the gravity of the situation in the area.
Rajnath Singh condemned the killings of nine CRPF personnel in a suspected Naxal attack in Chhattisgarh and described the incident as deeply distressing.
As many as nine CRPF personnel were killed and three others critically injured when Maoists blew up a mine protected vehicle at Kistaram in the strife-torn Sukma district.
The relationship was so closely shared due to the proximity of the 74 CRPF battalion camp with the Burkapal village.
Sukma attack: Rajnath Singh says anti-Maoist strategy will be revised, calls for high-level meet on May 8
The meeting will be attended by the CMs, Chief Secretaries, DGPs of of 10 Naxal-hit states besides the District Magistrates and SPs of 35 districts worst hit by the menace.