Lucknow streets are still full of hoardings of ousted Uttar Pradesh chief minister Mayawati, depicting her smiling visage. But when you meet her within the dim confines of her fortress-like home these days, she strikes a rather different pose, with an almost permanent dark scowl on her face. In fact, the first woman Dalit chief minister of the country was in a very foul mood a day after submitting her resignation to Governor Motilal Vora. "I will teach the Bharatiya Janata Party (BJP) a lesson," she declared. "In the municipal elections itself."