Section 4(1)(b) in The West Bengal Board Of Secondary Education Act, 1963.
(b)[ any railway service, airways service, water transport service, tramways or motor service, postal, telegraph or telephone services, any system of public conservancy or sanitation or any industry, business or undertaking which supplies power, light or water, to the public and those are run by or under the authority of Central or State Government or Public Sector Undertakings;] [Substituted by Act No. 21 of 2015, dated 31.7.2015.]