With rapid urbanization and development, a huge amount of solid/liquid Municipal wastes are produced each day and are dumped at Municipal dumping grounds leading to environmental pollution with toxic, non-biodegradable, persistent heavy metals on-site and off-site. Current investigation emphasizes the isolation and identification of bacterial isolates capable of tolerating heavy metal concentrations (Copper, Chromium, and Lead). Five isolates from sludge were collected from the dumping site at Boragaon, Guwahati and based on their biochemical and morphological properties and 16S rDNA analysis, identification was done till the genus level. They were found to be Bacillus cereus, Bacillus paramycoides, Bacillus velezensis and Lysinibacillus fusiformis. All the isolates showed different MIC against Cu, Cr, and Pb at different concentrations. Lysinibacillus fusiformis showed maximum resistance against Cr at 900 ppm and the least was shown by Bacillus cereus at 500 ppm. Co resistance of heavy metals and antibiotics was also investigated, which showed many of the isolates were not only resistant towards Cu, Cr, and Pb but also were resistant towards Penicillin G and Streptomycin. Bacillussp and Lysinibacillussp showed varying susceptibility against other antibiotics namely Tetracycline, Ampicillin, Chloramphenicol, Ciprofloxacin, Azithromycin, and Norfloxacin. This has led to the conclusion of non-ethical and non-scientific disposal of wastes leading to the release and accumulation of toxic heavy metals to the ecosystem.