New India Assurance — to re-enroll a beneficiary with mediassist

Dear mediassist,
My mother's name from beneficiary list got deleted by mistake from ultimatix (Tcs system).
I want to re-add my mother's name now. But i am getting the below message when trying to re add her name.

"insurance is to cover risk and subject to continuity of coverage. Once there is a break in coverage, the policy/coverage is ceased permanently.
We see that the selected beneficiary was deleted on 19-april-18 with reason" (Coverage not required in future)"and since there is a break in coverage,
Details for the mentioned beneficiary has been ceased and hence cannot be enrolled."

It would be so helpful if you could assist me to add the beneficiary to your mediassist via tcs employer.

Thanks,
Umasankar shanmugam
Employee id - 1345950