Quote from what appears to be the Air India General Manager (Flight Safety)
During the investigation of a few incidents, where in momentary stick shaker was experienced by the Pilots, and during Flight Data Recorder monitoring, it has been observed that possible mismanagement of Flight Deck automation lead to such excursion.
During Flight Data Recorder analysis it was observed that the stick shaker incidents
occurred mainly due to one or a combination of the following:
1. Manual flying with excess bank during flap retraction at heavy weights.
2. Early flap retraction without permitting the aircraft to accelerate at the expected rate.
3. The pilot may have induced or precipitated the event by improperly manipulating the automation/disengaging automation partially, e.g. Auto Pilot engaged but Auto Throttle disengaged etc.
Seems like stick shaker activation is an everyday occurrence in Air India!