Now, Raging Red Thar is at Sireesh Auto service centre, Magadi Road, Bangalore for sensor-related work.
Today morning me and wife left our Bangalore home at 5 am to Chennai. Atter driving for a few km, the 'check engine' light [CEL] appeared on the MID. Initially, I thought that I might have pressed both accelerator and brake pedals together. I stopped, switched off, switched on after a few seconds and continued driving. CEL appeared again after a few km. Apart from CEL, I did not observe any other abnormalities. No limp mode, nothing. I drove on the electronics city elevated road at 60 kmph. CEL showed its ugly glow again. I stopped and opened the bonnet. I did not observe any tell-tale signs of rat-bite. Finally, CEL refused to go even after switching off/on, unlike the earlier occasions, when I decided to turn back.
Drove Thar to Sireesh Auto workshop at 9 am promptly. The technician connected the OBD tool and said the error related to oil tank sensor. He tried to tighten all the sensors by hand and switched on. CEL did not lit. But, he mentioned that CEL might come again after a few km and advised me to leave Thar with them for a few days, when they would do a thorough check and, if necessary, will report to Mahindra for any replacement of any sensor under warranty.
I shall resume my Bangalore>Chennai drive after Thar comes back to me.