For the last few days the site has been impregnated with inflammatory answers against Gods which are excessively abusive. Is there any way to take legal actions on them based on any IT act? If Yes, will HSE provide their IP or relevant information to case against them? Or is there any way SE itself provides a way to take legal actions on them?
A lot of those chaps are trolls. Don't respond. Flag em, don't give them a response. They'll go away eventually.
Practically Its probably a lot of trouble, money and multiple jurisdictions. SE isn't going to share PII without a court order, and you'd basically need to ... well find a judge to give an order against someone who could be anywhere.
Much more effective to help the mods make them go away. Organise a posse, keep an eye on smoke detector feeds and make them go away as fast as possible.