Partner moved abroad and not responding. What to do next?

We got married in Chennai in Sep 2018. She is an OCI & an Australian citizen. Our marriage was registered in Chennai as per Hindu law. 5 months into the marriage, she left to Australia for a routine trip to spend time with her parents. We started having a lot of issues and she demanded me to leave my widowed mother, stable career & family in Chennai and move to Australia. I went through a lot of mental abuse from her side and she and her family started firing blatant accusations on how I didn't treat her right in the marriage. Her parents came to Chennai in June 2019 to push their agenda and compelled me to move to Australia. I refused and they left back to Australia and since then they have been ignoring my calls and messages. I finally sent a notice to call for divorce on mutual consent through a lawyer early this year. They responded mentioning that they will come to India to discuss once the covid situation gets better which I don't see happening anytime soon. What should I do next