Its highly unfortunate but true. I just spoke with people who know about the subject and here is updated info:
- SM activist Sameet Thakkar has been given all legal help from BJP Maharshtra. But he didn't/couldn't follow the court's direction of cooperating with police after 1/n https://twitter.com/1997Indian/status/1322167093555441664

... the protection from arrest was given. That resulted in his arrest. However state leadership including @Dev_Fadnavis are aware of the present situation and helping. Maharashtra BJP MPs are in touch over the phone. Nagpur Mayor is giving full support. Infact 2/n

Youth BJP members even sat outside his parents home to protect his family when he was threatened.

Remember, we are fighting against a very evil state govt. Present arrest is because he said 'Powerless Uddhav'. That's it! There are many more FIRs and party IS helping n/n