CPI(M) today demanded that Election Commission should take suo-motu action against the BJP for alleged inflammatory advertisement campaign ahead of final phase of Bihar assembly polls. <br/><br/>In a series of tweets, party General Secretary Sitaram Yechury attacked BJP over the advertisement in newspapers, which targets Chief Minister Nitish Kumar asking him why he has been mum on repeated insults to cow made by his grand alliance partners RJD and Congress. <br/><br/>He said people will not forget rising prices of pulses and divisive politics will seal NDA's fate in the polls.