Palli Bidyut Samity (PBS) is the Bengali name of a Rural Electric Society. It is a consumer owned entity organized on the basic principles of Co-operative for distribution of electric power to its members and other consumers. It is an independent corporate body subject to all applicable laws and prescribed Bye-Laws and is responsible for the efficient and effective management of its affairs including proper and successful construction, operation and maintenance of its electric distribution facilities as well as to take measures for effective use of electricity to foster rural development with special emphasis on increase of use of electric power for economic pursuits, such as development of agriculture and establishment of rural industries and assisting the disadvantaged sections of the community for augmenting their income and standard of living. As per Bye-Laws, the PBS shall at all times be operated on No Loss-No Profit basis for the mutual benefit of all its Members and non-members alike and is expected to repay all indebtedness on schedule.

As per REB ordinance - 1977 (LI of 1977) the Rural Electrification Board is the registering authority of a PBS.