Hello,

According to the FAQs on the official website it is stated that you will be notified of your acceptance usually within two months after the receipt of your application in the Regional Centre when the review process has been completed.Once the candidates’ application form is approved by the university, the IGNOU admission status will show ‘approved’ or 'confirmed' status,you will also be sent an email/SMS mentioning that the candidates’ admissions are approved.

You  can refer to this link for more details:

https://university.careers360.com/articles/ignou-admission-status