Divorce - Mutual & Contested

Hi All, I'm NRI and currently in Australia.I got married to girl on 23/06/2016 on papers to processed her visa and flew back same day due to work commitment as we were just married on papers and not socially.Our social marriage were organised 4 months after. Meanwhile while I was here I got messages on FB from her ex Boyfriend that please get out of this marriage and started sharing their compromising pics to me.He also send the details of the hotel they were in and even with card image.Than before social marriage she tried to cut her nerves before our social wedding. I was there for 5 days and we have never lived together as were not married socially but yes legally we were. Than she lodges a compaint against me for mental harrasement us 498A.I left country by the time I got to know that complaint was lodged.We provided enough evidence to Police that she had affair and she wanted to carry this on and all pics of her compromising position yes and his boyfriend texted me so that I call off this marraige.There was text that where she told him that she wanted to kill me so that everything get sorted out. Police did check all evidences and lodged B Summary and told us that she had earlier lodged a complaint against her another ex BF for NOC and accepted she had affair with me. I was completely innocent and after 8 months they rang us to go for mutual divorce and I sent POA to my dad. Basically there was mutual undertaking where it was clearly mentioned that she won't file any case against me in future and won't object B summary in court proceedings and I won't misuse those photos and will delete it from all the sources. (27/06/2016) after 1 year of marraige. Now its time for second motion (hearing date is 27/12/2016) and she is not signing a second motion affidavit as she went to Canada on student Visa. Could you please guide us what be best legal steps can we take to sort this out