Languages

Hi,
IELTS is an international exam. It stands for International English Language Test Series. Suppose if want to go abroad (English speaking nation) for your further study or willing to work abroad then this exam is required. It shows how fluent you are in English (all round). You can appear in this exam when you are fully prepared. Its result is shown in band levels ranging from 0 to 9. The more the band you scores the more you are proficient in English.

No, you cannot. You need minimum 50% for regular B.Ed.

English is mandatory for marketing people because they need to deal different customers. You can get a job in sales and marketing in Delhi area as most of the people will speak Hindi so you can. But better if you learn English as well.

Yes, you can pursue if you have completed your UG from a recognised board.

Hello Santosh,
Once CBSE has declared your result as pass with whatever subjects that you have taken, you can not give exam for an additional subject nor can you appear for 12th again with different sets of subjects.

The point is if you attempt all the questions, then there will be bonus questions for you to gain extra edge.

Of course dear, you are eligible for the study in Canada with this score. Your score is quite enough to get admission in any good institution and I think you may also try for the scholarship because some colleges might give a scholarship to the students. So if you want to go for it, you should apply immediately.