Detained by Bangalore Police Over Old Photos – Were My Rights Violated?

Hi, I had a really unsettling experience today with the Bangalore police, and I’m wondering if what they did was even legal. Here’s what happened: A friend of mine, who had previously been in lockup, told the cops that my other friend and I smoke weed (which isn’t true). This friend called us to meet at a spot, and when we got there, undercover cops detained us. They took our phones, searched through them without consent, and even demanded access to hidden settings on my iPhone. While going through my gallery, they found some old photos of weed in a hidden folder (these were years old and had no connection to anything happening now). They claimed we could be jailed just for having those pictures. They then took us to the lockup, physically assaulted us, and intimidated us for hours. Eventually, we had to pay 50,000 INR (split between me and my friend) to be released. Even after paying, they kept my phone, keys, and vehicle. I feel completely violated and shaken up. I’ve heard that possessing pictures isn’t a crime, especially if they’re old and unrelated to any activity. • Was what the police did legal? • Can they really arrest or detain someone based on old photos found on their phone? • Do I have any recourse to get my property back or report this abuse? I’d really appreciate any legal insights or advice on what I can do in this situation. Thanks.