Schedule tribe govt employee wants permission for second marrige

Hi sir, I am a tribal government servant, who professed "GOND" (tribal religion) religion. I want to seek divorce from my estranged wife from the court but being a tribal, the HMA is not applicable on us.under article 366(25)schedule tribes (in addition to above my wife is not ready for the mutual divorce. Under these circumstances, can I solemnize second marriage. Because there is prohibition undern state civil service rule No. 23 for govt. Servant. should no t done second marrige without divorce .sir, being tribal, the IPC 494/109 is not applicable on me and personal law permits second marriage. I have various high court and supreme court judgment in which court accepted and permitted for bigamy for schedule tribe members that So here are my questions: 1. Kindly advise me full procedure of seeking permission for second marriage from the court 2. Can i give the ground of second marriage as "the courts are not competent to grant divorce for tribal couples? 3. Can i make this another ground inter-alia for seeking permission for second marriage? 4. My wife has deserted me 3 years ago. Can i make this another ground inter-alia for seeking permission for second marriage?