What should be yearly package for 8 years experience web developer in India?

Is there anyone working in .Net technology on this platform? If yes then share your views about the technology and its scope in future

I am working on Java since past 3.5 years and having package 8.5L know technologies like: Core Java,Servlet,JSP,Spring,Spring Boot,SQL,HTML,CSS,JS and Typescript

Do I need to learn any technologies point of view..?

And how much should...