West Bengal Chief Minister Mamata Banerjee on Saturday congratulated former Prime Minister and JD-S chief H.D. Deve Gowda, his son H.D. Kumaraswamy and the Congress after B.S. Yeddyurappa quit as Karnataka Chief Minister before facing a crucial trust vote in the state Assembly, and called the development a "victory of democracy"."Democracy wins. Congratulations Karnataka. Congratulations Deve Gowdaji, Kumaraswamyji, Congress and others. Victory of the 'regional' front," she tweeted.In another tweet, the West Bengal Chief Minister said: "I just spoke with Kumaraswamyji and congratulated him. He invited me for the oath taking ceremony on Monday."Banerjee's remarks came just after Yeddyurappa announced his resignation in the Karnataka Assembly in an emotional speech, admitting that the BJP didn't get the numbers needed to prove majority in the House.The resignation comes two days after Yeddyurappa took oath as the 15th Chief Minister of the state.The May 12 election across the state in 222 constituencies of the 225-member assembly, including one nominated, threw up a hung House, with no party securing majority. Polls in two constituencies were deferred.Of the 222 seats, the BJP won 104, the Congress 78, the Janata Dal-Secular, 37 and one each was bagged by the Bahujan Samaj Party, the Karnataka Pragnyavantha Janatha Party and an Independent.The Congress then announced its support to Kumaraswamy to form the government, but Governor Vajubhai Vala invited Yeddyurappa as the head of the single-largest party.