Correct, if you're planning to enroll in the B.A. in Economics Honours programme at IGNOU and since Indira Gandhi National Open University does not require an entrance exam for most of its undergraduate programmes, you do not need to take the CUET exam . Admission to UG programmes at IGNOU is typically based on IGNOU eligibility criteria and your previous academic records, not an entrance test.
Hope this helps.

Hello,

Admission to only certain courses in IGNOU is done through entrance test conducted by the university such as MBA/BSc Nursing/BEd etc, for undergraduate course admission as in your preferred subject you just need to fill in the form once it gets released, provide the required information, upload the relevant documents, pay the requisite fees,  and finally submit it, there is no entrance test regarding this, moreover as of now IGNOU hasn't stated that it will conduct admission to ug courses through CUET scores, follow the official website at ignou.ac.in to know more details regarding this.