If we lok carefully at the regional map of Asia Veitnam is just next to China .The chineese Navy shal not need to travel large duistances to assemle there while keeping their supplyb lines jsut next to them
but for Indian Navy they wil have to come all the way from Mallaca strait to chalenge the Chineese and thus they wont be able to pose much of a threat for Chineese ..
Thoug in the same way if we say that the encounter takes place along Myanmar The indian Navy will destroy the PLan attacks.
Actually both the navies are at present not capable nough to pose a threat at large distances they can only dominate in a small region .Frankly in the war between india and China Navy wont play a significant role,
Though indians have an edge as the oil routes pass through mallava strait and thus in the long duration war indian navy can block chineese oil supplies to weaken the Chineese .