The incumbent LDF government faces a major infighting on the eve of the Kerala polls.
Kerala votes for the next government on April 13.
NRI voters from Kerala can enrol till the last date fixed for filing nomination papers on March 26.
Since NRIs are allowed to submit passports as proof for enrolment, the election registration officers have been spared the huge task of verifying the applicants' credentials.
Parliament had in the monsoon session passed the Representation of People (Amendment) Bill, 2010, to allow NRIs to vote.