Kolkata, May 29 (IANS): In a major setback to the Gorkha Janmukti Morcha (GJM), its entire top leadership including chief Bimal Gurung, was on Friday indicted by the CBI in the murder case of All India Gorkha League (AIGL) president Madan Tamang.

Filed before a city court, the charge sheet indicted Gurung -- also the Gorkhaland Territorial Administration (GTA) chief, his wife Asha Gurung, party general secretary Roshan Giri and GTA chairman Pradip Pradhan among others for various offences including murder.

"In all, 14 people have been named today (Friday) in the final supplementary charge sheet. The offences include criminal conspiracy for murder, rioting armed with deadly weapons, committing murder," said a CBI official.

Others named in the charge sheet include GJM vice president Benoy Tamang, party MLA Harka Bahadur Chhetri, GTA deputy chief executive Ramesh Alley and Gurung's two close associates - Dinesh Singh and Devendra Sharma.

The CBI, which has been probing the case since 2011, earlier charge-sheeted 31 accused.

ABGL president Tamang was stabbed to death in Darjeeling on May 21, 2010.