Yes,you can get government job by the IGNOU certificate.IGNOU is the indira gandhi national open university of india.it is one of the best university of india.so you can get surely job in private as well as govt.job.but for you have also capability is also important.if you are powerful at knowledge,responsibility,behaviour,then it's surely you get govt.job.
you are eligible for govt. job with IGNOu certificate . the degree or certificate is valid by the indian govt. because this is one of the world largest open university which is established by the govt.of india. So this is eligible in any govt. jobs or private jobs. No daut for this degree.
This called the national open university.
This is valid everywhere, every department. & every jobs. which is govt. or private sector.
so. you don't worry.