As Uttar Pradesh powerhouse Mayawati celebrates her 63rd birthday on Tuesday in state capital Lucknow, one of her visitors is likely to be former rival Akhilesh Yadav, who has stitched up a slightly unusual alliance with the Bahujan Samaj Party (BSP) chief for the national election due by May, after years of acrimony between their parties. The alliance was announced on Saturday by both leaders at a five-star hotel in Lucknow.