498A, maintenance and divorce

Sir, I am facing 498a, divorce and maintenance cases filed by my wife who is a homoeopathic doctor. At the time of marriage they paid me 6 lakhs in the form of D.D. She gave birth to twins through IVF. who are with my wife only. I purchaged 200sq yards plot through cheques which was registered on mu wifes's name. On 1st June, 2018, the family court judge drafted an MOU with the following terms and conditions: 1. I have to pay 10 lakhs for the minor children and fixed deposit the amount on the children's name. 2. She being a guardian has to take the interest only and maintain the children till their majority. 3. She voluntarily relinquished the permanant alimony. 4. All the cases498A, dowry protection act cases must be with draw and we both have to take mutual consent divorce. 5. The plot which I have purchased will be permanent alimony to her. 6. After this no prosecution on either side in any court under any law or act. 7.wife or children should not claim a share in self acquired or ancestral property. We both agreed for these conditions but not yet signed and submitted to the court. Now my question is 1. Can she claim the return of the amount paid through D.Ds? As she always threatening me that I have used the stridhan and hence out me in jail. 2.How to write the condition in MOU so that she cannot reclaim the amount? And also no further cases And claims by her. Your valuable suggestions are requested. With regards