Each of the above selected sites (ecological area) was extensively surveyed in February 1997 to generate ecological baseline for the earlier conducted floral/faunal assessment for the BRPL's hydro treatment plant (WII 1997). The ecological areas surveyed earlier were revisited during the field trip for this assignment for collecting additional information on the ecological attributes of the natural environment to supplement earlier information on the ecology of the area. Existing information on landuse, vegetation structure, direct and indirect evidences, existing sources of biotic pressures and threat factors was further updates by recent direct observations in the field and consultation with local people and officials of the State forest Department during the field trip. Efforts to collect adequate field based information however remained constrained on account of insurgency that greatly limited our movements in the study area. Some gaps in the information could be overcome by reference of faunal checklist and field notes prepared by the naturalist of the Nature's Foster, a very dedicated nature conservation NGO working actively for the conservation of biodiversity of this region.