The poll watchdog has also asked political parties and their candidates to maintain high standards during the election campaign, saying it is putting all political parties on notice that any violation of Model Code of Conduct and use of intemperate, abusive language may invite "action".
EC officials said the reason for asking candidates and leaders against using distasteful language against women is based on its experience in the past Assembly elections.
"The Commission also advises political parties and candidates to refrain from any deeds/action/otherwise that may be construed as being repugnant to honour and dignity of women," the EC advisory sent to all national and state parties last week said.
While issuing the advisory, the Commission also enclosed a previous advisory issued to parties and their leaders in November 2013 which made it clear that the freedom of expression is "not absolute".
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"The Commission duly recognises the fundamental right of freedom of speech and expression under Article 19(1) (a) of the Constitution guaranteed to citizens of India, but it also needs to be pointed out that such right to freedom of speech and expression is not absolute....
The Bihar Assembly polls will be held in five phases on October 12, 16, 28, November 1 and 5. Counting of votes will take place on November 8.