What is the row over Savarkar in the INDI alliance?

UBT Shiv Sena chief Uddhav Thackeray has demanded a Bharat Ratna for Veer Savarkar just days after Congress MP Rahul Gandhi criticised Savarkar in a Lok Sabha session. Congress, in alliance with UBT Shiv Sena, is yet to react to the emerging faultline between the two allies. Meanwhile, Union Home minister and BJP leader Amit Shah slammed the Congress by reiterating that Savarkar was ‘the biggest patriot’