Transfer of case

Hello Sir/Madam My question is related to the transfer of the case. The scenario is explained below. My brother got married in Feb 2015 with the girl who belongs from a small village and very poor economical conditional. The marriage was arranged one. They both were happily living together with my mom, sister. After 2 years i.e. in May 2017, she went to his parent's house to spend some vacation. After 10-12 days, her mom called directly to my dad and was telling about her successful checkup for getting treatment to get pregnant. We as family members did not have any idea about the checkup and even my brother i.e. her former husband did not have an idea too. My brother was asking her about this but she was refused to answer his question and her mom started shouting on the phone. My brother got upset and sent her text message that you have broken my trust and I don't need you, just stay there( something like that in our mothertoungue). After that she was refused to speak with us including his husband. She did not even tried to contact with us till 10 months. We tried so many times to say sorry and forgot everything to happen but she was not ready for that. In the meantime, our relatives were tried to reach to them and convince their family members too but all effeorts were gone waste. After 10 months she put the condition through our relatives that I am going to speak with my family members (only my mom, dad, brother) if they will come to our house. We were decided to go and went with some relatives who knew both the families. However, that meeting was also failed as she just wanted to insult my parents and brother in front of everyone. Still we were ready to accept her just becuase my brother did not want the divorse as he really loved her. After coming back to the meeting, she sent Domestic Violence notice against all of 5 members of us in 15 days only. And case was started from May 2018. After that we have filed divorce case in our city court in July 2018. She did not come to any date in our city but my brother and my father every time go to her place just to sign and give attendence. They travelling since one have half year approx. Each and every time they have to spend 5-6k to attend one hour court session( even less of an hour sometimes) and even in this case she did not come. After one year she filed case for Alumni and for that we have to give her 5k or 2k or 4k at each and every month. We have to pay both advocate's fees, expense of travelling plus her alumni. Now we decided to clear this case by giving some money to his advocate and her and they were ready in 4lacs. Before proceeding her advocate asked for 35k fees to withdrwan the DV case. We paid via cheque and now he refused to withdrwan the case and asking us to withdrwan our divorce case first. And he will file new divorse case in his town. My question is, is it safe to withdrwan our case and give them authority to file new one ?