You are obviously not looking for a cheap car, what you are looking for is a great value for money. Between Indica eV2 and Indica Vista Quadrajet we will suggest the latter, as its more recent and the quadrajet engine is better than the TDi engine in eV2. With this as a starting point, we are comparing, Indica Vista Quadrajet Ls with Swift Ldi and Beat Ls Diesel. You can go through the link below for a detailed comparison;
http://www.ecardlr.com/compare-features/beat-ls-diesel-vs-new-swift-ldi-vs-new-indica-vista-quadrajet-ls.aspx
Performance
Beat Ls Swift LDi Vista Quadrajet
Power (Ps/RPM) 58.5/4000 75/4000 75 /4000
Torque (Nm/RPM) 150/1750 190/2000 190/1750-2000
Go with the Vista as the peak torque deliver is at a lower RPM and is over an RPM band
MIleage
Beat Ls Swift LDi Vista Quadrajet
ARAI (KMPL) 25.5 22.9 22.4
Maintenance is a tricky business, one does not have absolute figures of cost of labour and spares incurred on a car as per service schedule. In absence of hard facts, maintenance cost is nothing but conjecture. However, in case of Beat, Chevrolet comes with a maintenance package branded as 3 years Chevrolet promise, which you can buy at the time of delivery of your new car at a price. Advantage of doing so is that this package takes care of all cost as per service schedule of the car. The list of inclusion is pretty good, check the terms of this package and I am sure you wil be plesantly surprised.
Basis above points do a toss of a coin to decide between Vista and Swift.
We at www.ecardlr.com always recommend an exhaustive test drive fo all cars under your consideration set. Define your need from a car as clearly as possible and then decide. Take our inputs as suggestion and not a final recommendation. 'Drive Safe. Be Happy'