What was 1995 guest house incident when Mayawati was held hostage?

The BSP-SP coalition had come into power in Uttar Pradesh in 1993, but BSP withdrew support in 1995. Following the announcement, on June 2, SP workers marched into the State Guest House in Lucknow, where BSP supremo Mayawati was in a meeting, and held her hostage. Reportedly, the workers assaulted her and cut the guest house's water and electricity supply.