This is false. India does not have a list of named terrorist organizations, in the way that the US does for example. But there is zero indication anywhere that India specifically considers Hamas not to be a terrorist organization - you are making that up by projecting your own personal views.
You only speak for yourself, not for the Indian government or any other Indians. Your personal view is that Hamas is not a terrorist organization, and that they (and PLO before them) are justified in their use of violence. I strongly disagree with that view, and so do most people. Your view is a fringe view - and it better explains why you don't mind quoting propaganda outlets that openly align with Hamas - you yourself are aligned with Hamas.
The bottom line is that I believe Hamas is a terrorist organization, and you don't. So there's no valuable discussion to be had with you on this topic.