Voting in 18 of the 294 Assembly constituencies in West Bengal and 65 of the 126 seats in Assam was "by and large peaceful" with no reports of violence-related death or injury, Deputy Election Commissioner Sandeep Saxena told reporters in Delhi.
Responding to questions, he said a total of 16 complaints related to rigging, denial of vote and late start of polling were received.
Polling in the two states was held amid tight security, including large-scale presence of central para-military forces and aerial surveillance by helicopter-borne personnel in West Bengal.
In 13 seats of tribal Jangalmahal area earlier affected by Maoist violence, polling concluded at 4 PM as scheduled due to security considerations. In the remaining five seats of Purulia, Manbazar, Kashipur, Para and Raghunathpur it went on till 6 PM.
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Banerjee's TMC, which contested the last Assembly polls in alliance with the Congress, is pitted this time against foe-turned-friends Congress-Left combine, besides the BJP, which is seeking to make inroads into the politically volatile eastern state.
Seeking to capitalise on anti-incumbency factor and a host of contentious issues, including the divisive debate on "nationalism", BJP has tied up with former chief minister Prafulla Mahanta's AGP and Bodo People's Front in its bid to dislodge the Congress from power in the northeastern state. Illegal Bangladeshi infiltration is a major electoral and social issue in Assam and the party had sought to exploit it to the hilt during electioneering.
AIDUF of Dhubri MP Badruddin Ajmal, which has emerged as a force to reckon with in the state is the last several years, with the backing of Bangladeshi migrants, has also fielded candidates in 27 of the 65 constituencies. Congress is contesting all 65 seats in the first phase, BJP 54, its alliance partners AGP 11 and BPF three. CPI and CPI-M have put up candidates in 10 seats each and CPI-ML (L) in six.