India, Nov. 13 -- Two dreaded Maoist leaders - Buchanna Kudiyam and Urmila - were among the six ultras who were killed in an encounter with security personnel in Chhattisgarh's Bijapur district on Tuesday, the police said on Thursday, adding that they carried a cumulative reward of Rs.27 lakh on their heads.

While Buchanna, alias Kanna, was a key planner and executor of several major Naxal attacks over the past decade targeting security forces, civilians and development projects, Urmila was the wife of senior Maoist leader and Dandakaranya Special Zonal Committee member (DKSZCM) Papa Rao .

Urmila was the main handler of logistical supplies for the PLGA (People's Liberation Guerrilla Army) battalion of the outlawed CPI (Maoist).

The enc...