Hi, so basically its been 26 years of your graduation and now you are planning on doing your masters.

If you are not getting paid high then you can apply for jobs based ln your past experience i.e., actually very high.

Although if you are actually planning on doing masters then I don't think any problem regarding your interest or admission.

Basically there is no age criteria in the IGNOU, you should just be a graduate which you already are.

I would suggest you to apply for masters in private, although if you want to do that full time then you can do that too

Hope this is helpful