Overlap between Job and Mtech course

I completed btech in 2019 & i have joined Andhra university for mtech course full time in feb 2021 ( actually it should start in 2020 but due to pandemic it started late) and i got opportunity from TCS and joined in tcs with btech in april 2021 due to pandemic (corona) both study , job parallel done in Online. Now i got offer from Cognizant and i accepted and in notice period .Resume i mentioned mtech passout year 0ct 2022 ,tcs joing date april 2021, and during interview they didn't asked about my studies gap or overlapping. I also not get doubt on this gap and overlapping. But while filling onboarding process of cognizant bgv they asked reasons of gap and overlapping between job and study i mentioned like due to pandemic all went online with out any issue. Is it cause any issues in BGV process ? Can any ine suggest me on this.