For securing divorce; if you are a Hindu, you would have to approach the family court citing cruelty as the reason for seeking divorce and mentioning all the possible reasons and including evidences. In your prayer to the court, you would have to mention specifically that you have been staying separately since 2010 so as to inform the court that any further reconciliation is not possible and further, requesting the court to waive off the conciliation period of 1 year on filing for divorce.
In your case getting divorce should not be a problem.
Thanks.