Is fluent English and general knowledge, necessary for law?

English is required for law when you are dealing with the sections particularly the vocabulary used in these words are highly difficult to understand, language is highly traditional. No problem with dedication and hard work you can improve. First refer basic books like Riemann murphy English grammar

I think that they are much essential for a lawyer and they give him an added advantage , provided he is comfortable with them.

General Knowledge is the first pre-requisite, as a broadbasing is vital for making yourself much above the average. If you have that determination, then you will wish to go ahead of practicing at Lower Courts, where vernacular may be sufficient . Then you would like to grow, and learn English usage