Re: What? No GPS?
It's possible that the owner of the Starlink Unit has nothing to do with it, of course. However, on the other hand, let's look at the likelihood of that.
If the unit was stolen from the rightful owner, well you would expect the owner to have reported the kit as stolen to Space X and stopped paying for the connection. So it would have been useless to those who stole it, and no use on the boat. A pretty quick and easy answer for Space X to provide. No help to the Indian police, but also no false lead to waste time on.
If the owner leant the Unit to someone not realising what it would be used for. Well, there's a name that the actual owner can provide, saying I leant it to this person. There's a lead for the police.
If the Unit was taken without the owners knowledge, say they were on holiday at the time. Well again that generates leads, because it would have to be someone who knew the victim, knew they were going on holiday and for how long, and then could get access to their Unit. I consider this a highly unlikely scenario though, as when the owner comes back from holiday, they're going to notice not having internet anymore, and assume they've been robbed and cancel their subscription/connection. The planned voyage would have to be shorter than the planned holiday, and that seems unlikely, or the people on the boat would risk losing their comms mid journey.
Also, I would expect the whole point of the Starlink connection here was for comms not for navigation. A phone call or messages sent over Starlink, and not over a local provider (on which the local plod might be listening or could put pressure on) would likely be more secure (for a given value of secure of course).