New Delhi: Former Chhattisgarh Chief Minister and Congress leader Bhupesh Baghel on Wednesday congratulated security forces for the successful operation in Narayanpur, where 27 Naxals were killed in an encounter, including top CPI-Maoist leader Nambala Keshav Rao alias Basavaraju. He also paid tribute to the jawan who lost his life in the operation, while highlighting.