Nah. Running on petrol. Peace of mind :).
I even have one domestic LPG cylinder lying in store, almost full with LPG. But the problem is, the regulator it has can't fit on the CNG pipe that is running from boot to the engine bay. The pipe is too small in diameter.
Now I wonder how to solve this problem. Yesterday, I was in G-9, and the LPG filling guy told me to visit some LPG installer (the location of one is unknown to everybody :))