Sibal now refers to Ramdas Athawale Vs. Union of India [2010 (4) SCC 1] and reads our relevant excerpt

Further, Sibal states - When the house is not in session, Governor has the power.

If Govt. has lost majority, there has to be a constitutional mandate to call the house. Where to go if the house is prorogued? However, never has this happened that the Governor has called for a floor test during a running session, “never”, Sibal asserts.