Thank you for overestimating the foresight of China, but prediction of india upgrading Su-30MKIs a few years ago is really beyond China's ability.
And india needn't to worry about China, cause China only keeps his eyes on F-22 and F-35 .
Just upgrade your Su-30 MKI as advanced as possible, China doesn't care.
You could recall the process of the negotiation of Su-35 deal and would find China didn't take the iniative to buy such jets ,but Russia was keen to promote Su-35 to China.
In one word, the most important program of PLAAF is J-20 ,while Su-35 is just a variant of Su-27 with some improvement of electronics and turbofan engine.
Are you out of mind ?
The official of BD airforce is now in China and negotiating , and you are talking about the tender .
You really need to ask BD people and figure out what's happened .
Can't imagine the intellect of you indian.
I won't reply to your guys who don't deserve my time .