Let's face it. India and China have never been the best of friends. Distrust and suspicion runs deep beneath the numerous rounds of 'peace talks'. It's highly unfortunate that both the countries still haven't been able to overcome a mutual sense of distrust that's a direct consequence of a turbulent history they share.
Thus, more often than not, there's tension at the border. One such instance was captured in a video which showed Indian and Chinese soldiers getting into a verbal spat regarding patrolling in a disputed area.
Source: Star Ocean