JUDGMENT

Shivaraj V. Patil, J.-Leave granted.

2. This appeal is filed by the Municipal Corporation of Greater Mumbai challenging the correctness and validity of the impugned judgment and order made in the writ petition by the High Court. The writ petition was filed by a registered trade union called Kachara Vahatuk Shramik Sangh (hereinafter referred to as Union . It claims to represent 2000 workmen doing the work of lifting, transporting and dumping of debris, garbage, silt, house gully material etc., at the various dumping grounds of the Bombay Municipal Corporation. The appellant herein is the respondent No. 1 in the writ petition (hereinafter referred to as `Corporation ) and respondent Nos. 2-33 are different contractors who had been entrusted with the abovementioned work on contract basis. Respondent No. 34 is the State of Maharashtra and respondent No. 35 is the Contract Labour Board established under the provisions of the Contract Labour (Regulation and Abolition) Act, 1970 (CLRA Act). Respondent No. 36 is the Commissioner of Labour for the State.

3. In the writ petition, it was emphasized that the nature of work carried out by the contract labour is perennial; merely because