Dear Shraddha,
Kindly refer to the Maternity Act Amendment 2017. Yes, it is mandatory for every employer, especially those working in a startup, to avoid negative markings during auditing and due diligence. You have to maintain a muster roll for all female employees on a monthly basis and draft a policy that is fully compliant. If you want, I can help you with the maternity policy. Kindly revert back.