Bahujan Samaj Party chief Mayawati today said the BJP may call for early Lok Sabha elections after its stunning defeat in the parliamentary bypolls in Uttar Pradesh and Bihar. The former Uttar Pradesh chief minister, whose gamble of backing the Samajwadi Party for the bypolls in Gorakhpur and Phulpur in the state paid rich dividends, said the idea was to teach the party a lesson. Addressing a rally here, she labelled the Narendra Modi government at the Centre a dictatorship and alleged that it had surpassed the Emergency imposed by the Congress government in 1975. Mayawati also accused the government of weakening democracy and making constitutional organisations and the media ineffectual.