This is in regards to your query posted on the website CarDekho.com, we would like to inform you that Chevrolet Beat is powered by 1.2 liter petrol engine and it gives mileage of 14.5 kmpl in city conditions and 18.6 kmpl on highways. Looks of Chevrolet Beat are fantastic and the car has got sufficient interior space. The company is giving 3 years warranty on the car.
On the other hand, Maruti Wagon R has been one of the most dominating cars since a decade. Maruti Wagon R is powered by 1.0 liter petrol engine. The major advantage for purchasing this car can be its good resale value and low maintenance cost. It gives mileage of 14.0 kmpl in city conditions and 18.6 kmpl on highways.
You can use the given link to Compare Chevrolet Beat and Maruti Wagon R.
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.