Well Prasy, there is also the current 82 bhp 1.3 litre MPFi version. The engine is the same Suzuki 13BB engine found on the Esteem and Versa as well, the torque curve is a little different to pull the nearly 1 ton vehicle through gradients and slush.
Finding a used Gypsy, especially in Mumbai should be tough. Don't pin your hopes on only one that you find. Take your time and look at atleast 3-4 before you decide. LPG kit on a Gypsy would really rob the vehicle of any power that produces. Coupled with the AC, and an autorickshaw would make mincemeat outta you.
My personal experience with the Gypsy is that it is a bit cramped but an extremely competent off-roader. The ride is a bit hard over anything that is a smooth surface. But then again, with leaf springs you really can't expect much. Ideally, look for a 2000+ model, if lucky go for the MPFi one. Expect it in the range of 1.5 to 2.25 L for a 2000-2003 model.
Revv |