Thank you, Tarheel, for an elaborate reply, rather, elaborate relies.
I can immediately see that you don't copy-paste texts
There is no Indian English, it is Inglish ;-) , a distorted form of the colonial British English. There are some who write really well in India, and I am not talking about Chetan Bhagat. Arundhati Roy, Vikram Seth, ..., they write well, as did Nirad C. Chaudhary.
"Crossing answers" is incorrect and was an inadvertent typo. Actually, I don't restrict myself while writing. I check grammar and composition while editing. Since this is an informal forum I don't usually edit answers. I write like I talk. Maybe, I would have been better served by "strike off". But this is only a conversation between two individuals. So my writing should reflect the natural flow of conversation.
also, when I think of grammar while writing lose clue. So I let my subconscious do the grammar part while I am writing. Then, depending upon the situation, formal or informal, I try to edit paragraphs to maintain a structural integrity.
Capitalisation is the teacher's innovation.
This is not the first time the errors have happened. There is a conversation I began regarding it's I or it's me. Then too, my daughter's marks were incorrectly deducted. I had warned the school regarding these incidents. But they are too ignorant to understand the nitty-gritty.
This time I am really angry.
In India, there is a parallel education system called private tutorials, other than the normal school education. Since school education is mostly pathetic, private tutors have a field day if they are really good. The college has some of the best tutors in Mathematics, Biology, Physics and Chemistry. Since the standard of english is generally poor in our area, it is very difficult to come across a modest teacher.
So now that the issue is crystal clear, shall we proceed to close this thread? I thank you all for the support you have extended. Have a good day!