Spoken English

I would suggest you do an online course for learning English and it is handy as well as easily accessible anytime anywhere.

They do not offer the pilot training course at their academy.

Dear, if you are time consistent, then you can go for online training like you can access YouTube BBC interviews you can also go for Alisona online examination which is the certified course too.
I hope this helps.

There won't be a problem if your English is not good. You can go ahead with your admission.

You can join English classes and also concentrate on speaking, writing, learning and listening.
if you know Hindi then go for dulingo app it's best for English learning

It is a premier place to learn English in the globally acknowledge manner. British Council, other than conducting workshops and special training offers formal courses as well:
https://www.britishcouncil.in/english/schools/Delhi
For adults:
English:
Spoken English for IELTS (Regular)
English for IELTS (Intensive)
Introduction to Creative Writing
Business Communication Skills
Cambridge CELTA
Masterclass for IELTS Trainers
For young learners:
Summer School (7 to 17 years)
Primary and Secondary (7 to 14 years)
Upper Secondary (15 to 17 years)

Some of the best institutes are:-
1. British Council
2. Inligua
3. British Academy for English Language