Filing of divorce in India although concluded 2 yrs ago in Dubai

I have concluded all divorce docs in Dubai 2 yrs ago and have been living seperately from my husband since then. Already divorce doc from Dubai attested by Mjnistry of International Affairs( Indian Embassy ) , translated with me. I have information that ex- husband is already married and settled down in Dubai whilst I stay on in India post the divorce. Now for me to get remarried I have been told that the divorce in India is not legal and needs to be filed in India court under special marriage act as Ex is Hindu and I am Christian . He says he will do the mutual consent but is unable to come now due to the Quantas time situation for Covid and it will be problematic. I have been told there are 2 ways this can be done ie using a POA from his side to execute the work without him being present while filing a mutual consent. Also something about a decree of declaration that can also be filed here but as per Indian law that doc is for International marraiges and doesn’t abide here. I’m in worried and need to go ahead with the doc from Dubai because I have friends who have used this same divorce from Dubai for filing in the past under same circumstances as mine. What should I do? If my husband is refusing to come down and I need to get this done what is the best way possible as he is willing to sign the mutual divorce doc?I do not want to spend 6 months again living heartbroken and wrapped up with this as I have already spent enough time being hurt by the divorce and need this sorted ASAP . Also I don’t have physical proof of his marraige so how I can I take that up in the court of law?