Alagappa University

Definitely you can get admission for B.Sc in YCMOU while doing BA.

No, you get MA English, MA English literature and MA teaching of English. Almost all universities offer the course. Few of them are Indira Gandhi National Open University (IGNOU), English and Foreign Language University, University of Madras, Telugu University, Maulana Azad National Urdu University, Netaji Subhash Open University West Bengal (Teaching of English).

Hi Eram,
Distance education institutes approved by UGC should be recognized globally. However, every university has different entry requirements so you must check directly. Contact the university(s) in UK you wish to apply to before applying. It will completely depend on the university.

Yes, but they provide distance education only. You need to search for a job all by yourself.