You're right; I didn't notice that India actually participated one more time in 2018 with Russian tanks before calling it quits. It (the 5th in 2018) wasn't listed for some reason on the wiki page so I overlooked it.I believe the last time India uses their own T90 tanks, both broke down. And that was in 2017. In 2018 onward, India uses Russia supplied tanks. So even if India was to fare well (which they didn't) it has nothing to do with their maintenance and logistic prowess. Sorry to say that.
@Kakyan So actually, you are right, India did do better than DNF on their last appearance but you're still wrong because they got 6th instead of 5th. What did China get in 2018? LOL