Six Shiv Sena (UBT) Lok Sabha MPs skipped a parliamentary party meeting on June 18, sparking political upheaval in Maharashtra.
Shiv Sena (UBT) issued show-cause notices to the six MPs, giving them seven days to respond.
Sanjay Raut shared a video of Bal Thackeray and warned of 'Operation Tudwa'. The rebel MPs have been given Y+ security.
Experts noted legal ambiguity over the whip's enforceability. Both factions will celebrate Foundation Day on June 19.