1. In my opinion first check validity of Temple Marriage Certificate.
2. This is not a valid Marriage as per Law between a Hindu and a Canadian national is my view. The valid and legal Hindu marriage in a Hindu temple can be between two Hindus only and if both or one of the party is not Hindu by religion at the time of solemnization of Hindu marriage then it will be NO Marriage at all, it will be void ab nito marriage for which No court in India will issue decree of divorce to dissolve such marriage. Registration of marriage is not important here to make temple marriage valid marriage. The Marriage Certificate is not the proof of valid Hindu marriage between the parties if the marriage itself is void ab nito the Marriage Certificate itself becomes null and void.
3. Usually, when two people of different religions want to get married, they can do so only by solemnizing the marriage under the Special Marriages Act, 1954. In such cases, the proceedings before the Marriage Registrar amount to solemnization of the marriage. Notice about the intention to register the marriage has to be given at least 30 days before the date of registration. This is the procedure that is understood in popular parlance as a ‘registered marriage’
4. He can under Canadian laws divorce you (even as ex part) as all he need is to prove 'breakdown in marriage' due to separation of more than 'one year' and you will be sitting here ideating when he will come and give you "paper" divorce whereas he has already secured divorce under his provincial Law if he wants to being caring Canadian!
5. For understanding 'support under Canadian Law' first tell the forum in which province your spouse lives in Canada? If he lives in Quebec then spouse are not entitled to spousal support. In other provinces and territories of Canada, a common-law partner may be eligible for spousal support from the other partner. This may depend on how long the couple lived together before they separated (10 days you say so your case is legally weak even to claim 'support'). So what you write for the forum interpretation purpose about 'he offering support as per Canadian Law' means he is showing a big heart for the 10 days he lived with you and if you are not earning an income currently then it is advised to go for such charity in Canadian Dollars and do your own things meanwhile as most probably he is not going to come back and had he wanted to come back 2 years is not a short time to do so.
6. He is not expected to bring any legal document from Canada to claim you as his wife. Canadian can marry anywhere in the world.
7. He is right in saying it is not a legal marriage and for his support I have already mentioned legal view in para 2.
8. Now what are your options; such marriages are not legal in eyes of Indian matrimonial Laws so getting a divorce certificate is not required reading down this brief is my view.
You = used as generic and not meant for you if you are not effected party in this brief.