IGNOU - Indira Gandhi National Open University

These are some good coachings in west Delhi
BELS - English Speaking Course/ IELTS Coaching in uttam nagar
EnglishMate - English Speaking Institute In Janakpur
Kumar Sir for English classes

http://www.ignou.ac.in/ignou/aboutignou/school/soe/programmes/detail/71/2.

Applications are through IGNOU website, register yourself as a new student and then select your regional study center and course, then pay for it.

The foreigner can take the admission for their preferred course through overseas study centers of IGNOU. IGNOU will provide the list of overseas study centers and courses are available in the PDF file. Otherwise, the foreigner can take the admission through any one of the regional centers in India.

Yes, you can.
For BEd you should complete your Bachelor's degree, then you can do B.Ed.

Yes, you can apply for M.LI.Sc, course at IGNOU with 59% because the minimum percentage is 55% for that and you are eligible. Good Luck.

Yes, you can apply for B.Ed from IGNOU as you were primary teacher but first of all please check the eligibility as they ask for two-year experience. If you fulfill the eligibility criteria, then you can apply tor the same.

Yes, you can apply for the admission
B.Ed Course Eligibility:
A minimum aggregate score of 50% in graduation is a requisite for admission. A minimum aggregate score of 55% at post-graduate level is mandatory for admission into colleges for the B. Ed curriculum.
Best of luck.