Or if it’s a season pack (multiple episodes):
A clean, standard filename would be:
Based on your string: "Murder.In.Mahim.S01.Complete.480p.HEVC.WeB-DL.H..." Murder.In.Mahim.S01.Complete.480p.HEVC.WeB-DL.H...
It looks like you’re trying to generate a for a TV series episode or season pack. Or if it’s a season pack (multiple episodes):