I am thinking of pursuing MBA from anna university via TANCET in a distance education track (correspondence) But I am worried that it may affect my career

Hey,

See, there are a number of merits and demerits of distanct MBA. Now, this field is evolving rapidly due to Technology, but yet, the recruiters are not much familiar with distant learning students. You MBA degree will definitely be considered to be valid for any job, but in reality, the pay scale is a little less for a distant learning candidate than the regular ones. This is usually because you may not have the market exposure as a correspondence student. You won't get any campus placement. You will have to find a job for yourself.
But, if you are working in the same field as your MBA specialisation, then it is definately an added advantage as you will have degree plus experience from the same field. This is one of the advantage here. You can do MBA and earn together.

As a distant student, your syllabus will be different from that of a regular student. It will be more theoritical and nothing practical. So, if you are someone who is working and just looking forward to gain another degree, then you can go for distant learning. Otherwise, a regular MBA is more helpful.

Hope this helps!