Roy,
Your situation is covered under the following section 5A of the act. It states that notwithstanding applicability of ESIC, the woman employee is covered under the maternity benefit act till the time she becomes entitled to maternity benefit under sec 50 of esic act.
So your employer is liable under the act to pay maternity benefit to you.
If the deduction was not made because of a default of the employer, then you can complain to the ESIC authority about the same
Your situation is covered under the following section 5A of the act. It states that notwithstanding applicability of ESIC, the woman employee is covered under the maternity benefit act till the time she becomes entitled to maternity benefit under sec 50 of esic act.
So your employer is liable under the act to pay maternity benefit to you.
If the deduction was not made because of a default of the employer, then you can complain to the ESIC authority about the same