It's not so much the tuner but the Samsungs ability to display 50hz programming. Without that ability, your Samsung will be all but worthless, with only the ability to play NTSC material you've brought from home(DVDs, BDs, VHS tapes, etc.).
I can't say for sure how your Samsung will react to 50hz material, if the manual says 50hz you should be fine(as long as you use a STB and not the tuner for it's source, the tuner won't work with DVB-T for sure) but even if it doesn't say 50hz, there is a possibility it may work. If it's like my Samsung(smaller 1080p LCD) it won't work with 50hz, and will only display unsupported format
(or something to that effect). If it's like my LG, Insignia or Vizio it will work no problem with 50hz(even though none of those TVs say they support 50hz).
Your best bet is to find a source of 50hz material here and try playing it on your TV, if it works great, if not I wouldn't bother bringing it with. Power supply is another consideration, it probably won't say 100-250vac, 50/60hz for input power, but it may be. Like the whole 50/60hz thing, our TVs rarely say they are multi voltage, they generally just say 120v 60hz. The problem is no one wants to plug in their 120v 60hz TV into a 240v 50hz source to see if it actually works, the other way around makes more sense but if it's truly 120v you DON'T want to be plugging it into 240v, or your sure to see smoke or a blown fuse. The whole power supply thing is easier to work around than the TVs ability to display 50hz, for power supply you can just use a step down transformer or such. You'll still have a power supply frequency mismatch, your TV probably says 60hz whereas India is sure to be 50hz, but generally with modern power supplies, that doesn't seem to be a issue.
Your best bet is to find someone else who has tried everything I've suggested, but the chance of that is very slim and if you call Samsung, I'd be 99% sure all they'd say is, it's not going to work......
Good luck and keep us posted to as what you find out
Oh and your more likely to get responses to your question in the following AVS forum, you could have a moderator move this thread if you wish.