No tyre in the world is immune from sidewall cuts, no manufacturer except the Falcon offer warranty on sidewall cut.
Upsizing further increases possibility of sidewall cut especially if gets scraped on potholes.
However, XM 2 are specifically designed to deal with potholes and Indian road conditions same is highlighted on the advertisements available on you tube. and it is recently launched in the 195/60 R 15 size.Also our wagon R is running on xm 2 (asymmetrical) on highway +bad roads(village roads, pot holes, farms) nicely since almost 2 years(only one puncture till date.) On the contrary previous MRF suffered innumerable punctures on same roads that I had to replace the sparewheel also with xm 2.
Yes, the 65 sidewall is the culprit there for pravin 's manager.Really bad choice of size, it seems he just changed the tire size (neither upsize nor stock size)
Beauty of XM 2 is that the middle treads are soft hence better grip, the latteral treads are little tougher and the sidewall is very tough (read somewhere that it is 8 ply thick as opposed to 2 ply thick XM 1).