You marriage was in 2009, without regitrastion, you both have been seperated for 7 years. Now you want to go ahead with a divorce.
1. Please double check whether you name has appeared in any documents that your husband or you have submitted for a loan,purchase,rental agreement,any ID document or legal document. If there is any possibility that your name could be listed as Mrs....., then it can come back to you as a potential issue after your second marriage.
If this is clarified, then it is advisable, with the help of a good lawyer or both husband and wife to sign a MOU memorandum of understanding, that you both has settled all the claims and no liabilities are pending or would be entertained after the formal grant of divorce.
2.Then, if you are going for Divorce by Mutual Consent (of both husband and wife), there is no need for a formal registration, the cards, photographs etc would be sufficient.
3.Please be honest with yourself with regards to the relationships between both of you and both families, if there has been disputes, fights and bad blood between all involved and you have a good amount of investments or land or property, you would be going abroad for a good paying job, need a visa, then it would be better to register the marriage and then file for divorce as there should not be any grounds on which your first husband or his family can file for a share for the 7 years they have endured during an alleged 'troubled/unhappy marriage. Please have a chat with your family and then a good divorce lawyer and then take an informed decision that would help you to put the first marriage behind you with no future potential legal issues.