Hi,
OK, post some of your writing in the Writing section of the Forum, and we will offer you comments. My advice is not to post anything that is very long.
For a start, here are some edits to your paragraph in this thread.
Hi, I am from India. I have a postgraduate certificate from a university in the UK and also have an MPhil. Looking back, I think I had dyslexia, so now I am trying to improve my English. I would be grateful if you could help me. I am trying to improve my writing in order to submit scientific articles to journals. (Some friends of mine think I am joking)
Technically speaking, I thought dyslexia was incurable.
Best wishes, Clive