M.Phil

Yes, you can pursue the same from here. They provide this course. Good luck.

But, please, check beforehand. The UGC in the recent times have changed their regulations. Ph.D. has come to occupy an important place. A part - time pursuit is not allowed, these days. But, still, you can get a solution, after you get an admission. You can talk to the Head and seek his consent.

Yes, the courses are UGC approved.

I am not sure M.Phil exists anymore, as the UGC doesn't approve of it, anymore. You have to go in for Ph.D. You may have to publish a couple of papers, before applying for Research. English Literature is offered all over India and there is no problem, on that count. The spade work must be completed, before finalizing admission in Ph.D. think of UGC NET also, first. The process is greater these days.

M.Phil should be pursued through Regular (Full-Time 1 year/ Part-time 2 years) Mode only.

You can see all the relevant details about the exam on this link-https://www.shiksha.com/university/cochin-university-of-science-and-technology/cusat-dat-exam.