Working Hours
According to Section 54 of the Factories Act, 1948, an adult worker is not required to work more than 9 hours, and Section 51 prohibits working for more than 48 hours a week.
Working During the Night
Section 66 of the Factories Act, 1948, prohibits working women from 7 PM to 6 AM. However, the State Government may, by notification, exempt any establishment subject to the condition that the establishment provides facilities of transportation and security to such women employees. Not only in HDFC, but across India, no women are allowed to work after 7 PM, which means from 6 AM to 7 PM only and not more than 48 hours a week.
I believe the issue is resolved.
Sincerely,
Satish