Dear Ajay,
Men and women are deemed to be workmen as per Factories Act, and both can be engaged in a factory.
But for women there are certain specific issues.
1) Timing in working hours should end by six pm.
2)Nature of workshould not be hazardous.
3) Safe working load is different for them.
4) Separate toilets & dining rooms,etc.
Go through the Factories Act for necessary clarifications on Creche,working hours,toilets,safety,rest rooms etc.