I bought Aura in Feb 2020, Aura CNG model has problem-related engine misfire & CNG kit. We car owners have one what's app group where 60% of CNG owners face this problem.
When car shift CNG to petrol or vice versa car suddenly stopped even we have to wait for 5-10 minutes to start it.
Still 2 times I went showroom and change related component but the car still has the same problem.