You said
"I Agree that all court have many cases and not having much time to see my case. Due to this reason i have to spoil my life and career? Is there not any other way that I can save me and my family?"
Right to speedy trial is recognised as a part of Fundamental Right of every accused (even if foreigner) which you doe snot loose being NRI.
You can move to High Court to get such directions to the trial court to held speedy trial.