"...... If the vehicle has a mechanical or cable release system, check for free play at the clutch fork. The failure may have been caused by an incorrect adjustment. If the free-play adjustment was insufficient, the cover diaphragm or levers began to rise toward the bearing as the facing of the clutch disc began to wear. If the bearing was in continuous contact with the diaphragm, the clutch cover became partially engaged and allowed the clutch disc to slip, thus burning up the disc. If the problem is non-release on a vehicle with a cable system and the cable cannot be adjusted further, replace the cable. Clutch cables stretch and need to be inspected with every clutch replacement.
Source:
Automotive Clutch Problems? Find Your Answers Here!
Me thinks, this clutch play issue could also be a major contributor. Like my erstwhile workshop Spectra motors could diagnose no issue with the clutch, inspite of my insisting that I felt there was an issue with the clutch, as it would judder in bumper-to-bumper traffic. Also my legs would hurt after a traffic stint, which I thought was strange, as I was used to driving my friend's M800 in traffic a lot. Vitesse SA immediately found an issue with the clutch play when I took it for second service, and it feels much better that service hence. My problem was rectified pretty early on, if I let it go on for longer, it will lead to clutch failure. Lets see how long mine lasts. Premature clutch replacement without warranty won't make my father happy, he always wanted to buy a Santro Xing, and I can be sure of being on the receiving end then.