THE revolutionary democratic movement has, over the last few years, gained considerable strength in the plains of south Bihar, i e, the region south of the Oanga comprising the districts of Bhojpur, Rohtas, Aurangabad, Gaya, Patna and Nalanda. The peasant (more correctly, agricultural labourer) movement in this area is divided among a few organisations, the Vinod Mishra-led Central Committee, the Party Unity group, the Maoist Communist Centre and the Provisional Central Committee.