Diploma

B.Sc. Degree is usually given by a recognized university whereas a Diploma is given by a private Institution.
The tenure of the B.Sc. Degree course is generally 3/4 years whereas the tenure of a Diploma course is typically 1/2 years.

Baccalaureate of Education (B. Ed) Course can also be pursued through Correspondence or Distance Learning which is generally of 1 Year duration.
Top B. Ed Distance Education Universities in India
IGNOU Delhi.
Annamalai University
Andhra University School of Distance Education
Bangalore University
Directorate of Correspondence Courses and Distance Education.
Bharathiar University BA.

Yes,
Kindly check out the below link for information related to your query.
https://www.shiksha.com/university/maharshi-dayanand-saraswati-university-ajmer-24105/course-post-graduate-diploma-in-yoga-education-and-human-science-pgdyehs-168906

No,
B.Ed admission is possible for the aspirants if the students ensure that they fulfill the B.Ed eligibility criteria. B.Ed course eligibility includes a minimum aggregate score of 50% in graduation is a requisite for admission. A minimum aggregate score of 55% at the postgraduate level is mandatory for admission into colleges for the B.Ed curriculum. Some universities and colleges conduct entrance examinations for the selection of candidates. Most of the examinations are conducted in June or May. There is no B.Ed age limit for admission.

Dear aspirant,
A pleasure to meet you.
Kindly check out the below link for information related to your query.
https://www.shiksha.com/university/deen-dayal-upadhyaya-gorakhpur-university-22540/course-diploma-in-yoga-186691
Hope it helps.

Hey,
very nice to meet you.
Please visit this link for more information related to your query.
https://www.shiksha.com/university/deen-dayal-upadhyaya-gorakhpur-university-22540/course-diploma-in-yoga-186691

Hello,
Great interacting with you
Kindly check out the below link for information related to your query. https://www.shiksha.com/university/deen-dayal-upadhyaya-gorakhpur-university-22540/course-diploma-in-yoga-186691.

Kindly visit this link for more information
https://www.shiksha.com/university/deen-dayal-upadhyaya-gorakhpur-university-22540/course-diploma-in-yoga-186691
Thank you.

Hello dear,
Glad to meet you!
Kindly checkout the below link for information related to your query. https://www.shiksha.com/beauty-fitness/yoga/colleges/colleges-mumbai.

List of universities offering Yoga courses in Distance Education and Open Learning Mode:
Bharathidasan University, Tiruchirappalli
Dev Sanskriti Vishwavidyalaya
Gurukul Kangri Vishwavidyalaya
Jiwaji University, Gwalior
Karpagam University, Coimbatore
M. P. Bhoj Open University, Bhopal
Nalanda Open University, Patna
Rashtriya Sanskrit Vidyapeeth, Tirupati
Hope it helps.