Management of the company told me that they would give bad feedback - permanent employment offer which I did not accept

Hi. I was an intern for 6.5 months with a company(when I was pursuing my under-graduation). The company provided me a permanent employment offer which I did not accept because of my personal reasons. The company provided me with an internship certificate but and the management of the company told me that they would give bad feedback. Now I got a full-time offer from a different industry and I have not mentioned this internship in my resume. Will this cause any problem in BGV?

Whether internship was compulsory and part of your curriculum?

No it was not compulsory and it was not part of my curriculum.

Then you need not bother about the omission. Do not divulge the fact to any one in the new company even casually.