Shiv Sena is a party of goons very much like the Dravida parties of Tamilnadu which runs on dictatorial policies of Ball Thakeray. no one seems to have the guts to challence him and finally everyone licks his boot
Only Narendra Modi has the power to tame this fellow and he is afraid of it. This is why he reacting like this. BJP should sieze this opportunity and rally behind Modi and fight the elections alone.
They must realise that there is more anti sena votes available only if they stood alone. BJP has a more democratic setup and will stand to gain by developing their grass root support on thei own than relying on goons like Thackeray
