Section 66 (1)(b) of the Factories Act prohibits industrial units from employing women from 7 pm to 6am.
The division bench of Chief Justice Bhaskar Bhattacharya and Justice J B Pardiwala said the section is in breach of fundamental rights guaranteed under Articles 14 (right to equality) and 21 (right to life and liberty) of the Constitution, so it was invalid.
The constitutional validity of Sec 66 (1) (b) had been challenged by Balaji Wafers Company, on the ground that the section discriminated on the basis of gender.
The Madras High Court has earlier ruled Section 66 (1)(b) as constitutionally invalid while the Kerala High Court ruled that it was a valid provision.
Court today quoted both these judgements as well as the Supreme Court ruling that has said that women can be employed even at a place in night shifts where alcoholic beverages are served.
The court observed that women now work even at the grassroot level, as in police or other government duties.
