Now my question comes whether living away from husband for atleast 3years leads to divorce??
He may file a divorce case on the grounds of desertion but you can always challenge his allegation stating that you are always ready and willing to live with him whereas it is he who intentionally stays separately.
...... is there any section i can file so my husband stay along with me?
You can file a petition before family court under section 9 of Hindu Marriage act for this purpose. This is seeking the relief of restitution of your conjugal rights from your husband through court of law.
.....can you please suggest me what would be future circumstances if he does not meet me or talk to me and dont care my kid?
As per law he is bound to take care of you and your child, he cannot deny that, if he does, you can approach court with proper petition as per provisions of law.
......will this affect in the court of law as i am staying away from inlaws place for my study ???
It is not necessary that you have stay in your in laws house forcibly tolerating their tortures, and this will not constitute the ingredient for separation.
now i confused whether he is staying with inlaws or left India as my inlaws were forcing to go dubai
what action can i take to stop him leaving India without intimation???
You cannot stop him from travelling abroad, but you can file a criminal complaint under section 498a and dowry prohibition act by which he can be restricted from travelling abroad by a criminal court.