Voting began at 7 a.m. and will end at 5 p.m.
A total of 78.56 lakh people are eligible to vote in the hill state where 52 candidates are in the fray for the five seats.
Of the total 11,229 polling booths, 697 have been declared as vulnerable and 656 as critical. Most of the vulnerable and critical booths are in the plains such as Udham Singh Nagar, Haridwar and Dehradun districts.
Over 45,000 police and other forces have been deployed for the election.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)