Then why is China making a C-band active phased-array radar in Sichuan province with 5000 km range to track Uighur rebels or Myanmar's ballistic missile or Bangladesh's ballistic missiles or India's nuclear capable missiles you choose which one is more probable .
Can you provide a source of this C-band radar in Sichuan because I find no information about it.
One more thing: If Chinese do have an early radar tracking India missile, it is highly unlikely located in Sichuan since there is a Tibet plateau between itself and India, which will significantly reduce its warning time.
There is already one such radar in Fujian Province phasing east towards Taiwan this second one is uniquely placed to track missile launch from India.
Wrong, the first generation of such radar was built in Hebei late 1970s, which was watching Soviet missile.
The latest one, I can find, was built in 2006, in NingXia, which is still monitoring those missile in central Asia, or you can say Russians.
Actually, the only radar related to India missile is still on the paper, which is planned to built in Tibet.
As far as space based assets are concerned as far as i know China doesn't have any infrared space based systems ( I may be wrong) but has SAR capable satellites which India also has with under 1 meter resolution .
Shijian-11
http://claudelafleur.qc.ca/Scfam-earlywarning.html
As far as P5 is concerned 4 out of 5 are India's allies and even have nuclear deals with India some of them even sell uranium to India and they know that India's nuclear weapons are not against them nor against most of their allies they are for specific countries .
First, they maybe your friends, but not allies, none of them bear military obligation to you;
Second, selling uranium to you doesn't mean anything. US closest allies -Australia and Canada are selling uranium to China too; France exploded their nuclear device in Chinese nuclear test site; Russian sold re-processing tech to Chinese;
Third, they really don't care who India nuke is aiming at because India doesn't have ability to survive in a nuclear war while all P5 have been building their military force and economy around such kind of war in whole cold war.