Kolkata:�Four climbers from Kolkata summitted Mt Everest on Saturday morning, but the cheer was dampened by reports that three other climbers may be missing in what's known as the `Death Zone' -8000m and above.
Seven others from the state, separated in two groups, have already climbed the world's highest peak.
On May 19, a group of three mountaineers from Kolkata, Debraj Dutta, Pradip Sahu and Chetana Sahu set foot on the Everest summit.
Pradip and Chetana are only the second couple in the country after Sushma and Vikas Kaushik from Haryana to summit Everest.
Chetana was afflicted with severe frost bite on her limbs during her descend from the summit and was airlifted to a hospital in Kathmandu.
On Saturday morning, a group of another mountaineers Moloy Mukherjee, Satyarup Siddhanta, Rudraprasad Haldar and Ramesh Roy conquered Everest.
Faced with inclement weather during their descend, the four went out of their GPS trackers for a while but could later be traced after they reached camp 4.
Meanwhile, a former Everester, Rajib Bhattacharya, died on Dhaulagiri on Friday during his descend after reaching the world's seventh highest peak's summit as he was suffering from snow blindness and fell unconscious.