Hi Virendra, Both Chevrolet Beat and Maruti Swift models
have their own pros and cons. Where the Maruti Swift model is better in
fuel economy, power, maintenance and after sale service, the Chevrolet
Beat is better in looks, quality of interiors and comfort &
convenience level. Thus, it totally depends on your requirements that
for which car you should go between these two. For a detailed
comparison of these cars you can click on the link given below -
Chevrolet Beat with Maruti Swift Thanks,
Please check following things
1. Is Fuel pump noisy. If yes change the fuel pump motor. Its cheaper than replacing whole fuel pump.
Swift Diesel Fuel pump motor is compatible
2. Check Battery voltage at Glow plug point it should be minimum 10.5V. If not change battery
3. Last option is check fuel injector leakage and get it callibrated
It is advisable to start a car once in a week or two and take it for a spin if possible, so the battery get recharged. Also, if you are planning to park it for a longer period, we will advise you to get jack stands and also to disconnect battery terminals, then you won't need to start it again and again.
What we can understand from your question is that, your tachometer is not coming up and the car is not starting. It could be because of a dead battery, we will recommend you to jump start your car if you don't have jumper cables and a good battery, you should it take it to the nearest service center. Other problem can be related to the start relay or electricals of the car.