Hey Tina there is no such thing regards to registering your exam, tell this to Thomson Prometric, as this knid of resion is not allowed, as on only public holiday like 26 jan are considered.
Mumbai (8921)
Prometric
Testing (P) Ltd.
Marwah House, Saki Vihar Road,
Saki Naka, Andheri (E)
Mumbai � 400072
Ph: 91-22-28573160 / 28573171
Then there will no prob,
Still registered with other prometirc centre.