Shrutiji sorry, I'm having a hard time following this. I'm assuming you are presenting various cases of stages of undress for religious purposes that are not going against people's sensibilities?
Also, why are you talking about porn? I thought the topic was nudism. I'm not comfortable with the direction the post is going. Only replying since I already got dragged into this discussion. π
Anyway, I looked it up for you. Jail time and fine is for "public indecency" and "obscenity" and not distinctly nudity itself under Section 294 of the Indian Penal Code. However, it's very subjective because what exactly is obscene? Whether you could get convicted solely depend on the people pressing charges. A mother breastfeeding her baby may not be seen as obscene but a guy prancing around in his buff? That may be seen as obscene.
Nudism is not about wanting to be seen or to see. However, your intentions will be questioned in a cloistered society like India. Even in the privacy of your home, you'll be risking sexual harassment charges if you are consistently nude in front of your window for all to see.
So, don't impose your nudity on unwilling participants, as you can face repercussions. Sure, you can go on explaining to them how nudism is innocent, but it is ultimately subjective if they are willing to listen. This is India, after all.
I'm not sure if transgendertalk is the right platform to discuss this. π