Mixing ethanol and non-ethanol gas won't affect your car's functionality, in the long run, specific problems and vehicle issues may come up in the long run due to your experimenting. serves as a great cleaning agent for car engines over a long run. Ethanol fuel can cause storage problems, water problems, and engine problems over time due to the corrosive nature of the fuel. Pollution point of view it is better but practically , infrastructure of India is not good even the complaints of other advanced countries such as USA , Europe etc.
CNG has a lower energy density than gasoline, which means that a CNG vehicle may need to refuel more frequently than a gasoline-powered vehicle. The cost and placement of fuel storage containers is the major barrier to wider/quicker adoption of CNG as a fuel. CNG cars can be more expensive to purchase and maintain compared to petrol cars due to the more complex fuel system and engine design. Because of this reason, the sales of CNG cars are not encouraged in the area where refueling stations are not present, which results in the lower sales of such cars throughout India.