Not comparing but since u brought it up. Fact is even the old brahmaputra class frigate of IN has 2 helicopters,delhi class destroyers have 2.Shivalik class has 2 and kolkata class will have 2.IN seems to pay more attention to ASW.Admittedly this is because PN's main offensive punch comes from its underwater fleet and this emphasis on ASW is thus a natural development.
You forget PLAN has the largest submarine fleet after USN, Chinese surface fleet will have submarine acting as picket force position in far outer position ahead of main surface fleet preventing enemy from sneaking in.
Chinese fleet emphasize more on air defense becos aircraft is highly mobile and can switch position far more quickly while bringing in far larger amount of firepower if used in significant number compared to submarine threat.
A CV fleet without decent long range air defense is attempting suicide venture into ocean trying to assert control in modern naval warfare. You can see the trend of major navy developed their navy like french and RN emphasize on long range air defense like Type 45 Daring destroyer and OTH destroyer of french/ Italian navy.
Same as PLAN who modernise herself and pit against any other highly professional and major naval force.