It is simple statistics, nothing remains high forever. You had you highs, now you will have your lows. India had its lows, and now will have its high.
Mind you, China growth will still be high compared to world standard, only its pace will slip down.
Don't be so sure! People have already started sympathizing with the plight of Gandhi family, all it takes is a resurgent UPA in 2019 and and a bucket load socialist schemes to undo all our hopes of catching up with China.