Hello

Yes, you can do an IGNOU B.Ed (distance mode) along with a regular M.Sc from another university at the same time.
UGC rules now allow students to pursue two degree courses simultaneously.
One course should preferably be in distance/ODL mode and the other in regular mode, which fits your case.
Both degrees will be considered valid, provided you meet the eligibility criteria for each course. You will need to manage your classes, exams, and schedules on your own. It’s always best to confirm once with IGNOU and your M.Sc university before final admission.