3D & CGI at it's best, for INR 1500 per head in Imax 3D, it's worth to get live snorkeling experience or tunnelled underwater experience as found in Seychelles or Maldives or Thailand without going there.
But high expectations landed dead flat & boring at times, movie as a wholesome experience is not good. That after movie euphoria, or lingering effect (atleast to some extend it was there in the first part) is not there. Titanic was way too good in all forms, thoroughly entertaining. Here, evidently plotted for another sequel look like match-fixing. Cameron knew India is the market, so got the better out of it. Created a visual excitement franchise to mint money without a thought, mind, heart or brain, no script, no narration, no story telling, no logic.