In a surprise move, BSP chief Mayawati today vacated her second government bungalow in Lucknow's upscale locality that had been her home for years. Ms Mayawati had last month handed over the bungalow allotted to her as former chief minister but held on to 13A Mall Avenue which she had, as chief minister in 2011, formally notified as a memorial to party founder Kanshi Ram.