This communication presents studies of algal diversity sampled from Baraila lake Salim Ali Jubba Sahni Bird Sanctuary, a protected area located in Vaishali district of Bihar. It is the first time that wetlands of Bihar are explored for asscessing of the algal diversity. A total of 36 algal taxa belonging to 27 genera and 9 classes were identified and documented. Out of these, 4 taxa are recorded as new distributional records for India, i.e. Sphaerellocystis ellipsoidea Ettl, Oedogonium pratense Transeau f. minus Mrozi?ska-Webb, Oedogonium undulatum A. Braun ex Hirn var. incisum Hansgirg and Chara muscosa J. Groves & Boll.-Webst.