Any link to the case, especially the full decision and current status? Standing of the court you're referring to relative to the court with the ruling that 'sitting during the national anthem is not illegal'?
Kerala court denies bail to youth who didn’t stand up during national anthem | The Indian Express
That's your perspective - it's the decision by the highest ranking court on the issue that determines which interpretation is correct. This is why the specifics on the court decision you are referring to and the relative 'rank' of the court relative to the one I referenced is necessary.
Not necessary the interpenetration of the case may or may not have anything to do with any similar case- Depends on how good an argument is made- If one can pay millions to the best Lawyers in Higher courts they have a good chance-
Arrests would be temporary unless the court decision you referred to superseded or overturned the decision by the court I referenced, or if both were made in State Courts that essentially work out to be parallel rulings.
Precedence in judicial rulings is an important concept and usually is not overturned by lower courts without good cause.
Again not necessary-
Any financial losses should be recouped from the theater owners and local government that chose to place their physical well-being in danger and placed frivolous charges against them, once the decision gets to the higher courts, and any good lawyer would make this a high profile case with lots of publicity that'll ensure financial and other donations to support the family during such a time of trial and victimization.