Yes, of course Vinayka missions university  is approved and valid. As you have done Degree through private mode  then it is ok and it is approved by UGC and DEC also. So, you don't worry your degree is approved and valid. You can take admission in any other course after showing that degree

The degree obtained from Vinayaka Mission University is 100% valid for higher studies in any university or professional or technical courses or any government jobs. This is because this university has recognition and approvals from following organization:
University Grants Commission.
Ministry of Human Resource Development.
AICTE-UGC-DEC joint committee.
National Assessment and Accreditation Council.
The admission in Bachelor of Education is given on basis of bachelor's degree and you must have minimum of 50% marks in bachelor's degree to apply for this entrance examination of B.Ed.