Which is better for distance education for a Master's course in management: Symbiosis Center For Distance Learning, Distance Learning Education, India or Sikkim Manipal University?

Out of these two universities, a regular PGDBM from Symbiosis  has a better industry recognition, however in case of distance learning... I would suggest you go for a Degree rather than Diploma.  You can also check out other universities such as Bharati Vidyapeeth Deemed University that are well recognized and provide MBA degree at a much affordable cost as compared to AMU or Symbiosis. For your convenience you can check out the link : http://bvudl.com/dlp/index.php.