How to get wife salary certificate and kids school fees

Wife filed 13 i (A) cruelity case; i gave consent. Court ordered divorce without any maintenance for her as she is working in PSU bank with a salary than Rs.25,000/month. She put crpc 125 for kids maintenance each Rs. 10,000/month ( sons aged 5 & 9 yrs with her in karnataka) Court ordered for Rs. 8000/ per kid per month. I was single (Divorcee)than. My salary was than Rs. 88,000.. Now after 5 years she has put the appeal for increment in the maintenance for kids. Now she is demanding Rs. 50,000 per kid per month, indicating my salary is Rs. 7 lakhs per month and she has to maintain as per the standard of father. Now I have married and have a son of 3 years. My salary is now Rs.96,000 per month. Located at Hyderabad where the expenses are high. She is also earning Rs. 80,000 per month and getting all allowance for the kids such as school fees, medical expenses, holiday fees, recreation fees reembursement from her psu bank. Kids are in the village and expense will not be more than Rs. 10000/month/kid. She is not allowing to talk to kids and keeping guarded. She is planning to earn on kids name... Can I get her salary  certificate from her bank and kids school fees through court. Kindly mention under what section. Thanks in advance.

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