Husband is not giving maintainance as per ordered by the court

I belong to muslim community. I have a school going 4 year old daughter .My husband has abandoned me and my child for no reason . But ,he is not giving maintainance for us as ordered by court and giving lot of excuses.what should i do ?.I am really helpless ,just getting dates and months are passing by . He also wrote an undertaking that he will give the previous pending interim 45k(15k per month interim pending ) on a 15th september . Today is 14th september and he has only given rs5000 . I did maintainance case on October 2021, because i was debarred from my rights ,should i be geting rs 5000 for the rest of the months ? or i will get one day what i and my child deserve?. I have even submited his bank transaction details which shows his salary is 2.5 lakh per month and he gets RS 1,88,880 per month in his bank account. That bank details also shows that he is paying his lawyers 25000 per month but he cannot pay his wife and child 15000. he is working in a bangalore company as a senior software engineer but he has written in statement that he has left the job and working as a freelancer and earning 25000 per month which is a total lie.He also has taken all my college certificates before he married for the 2nd time with his cousin for which he is very proud of .i later acquired all my dupliactes from my universities . And for that 2nd marriage ,i cannot complain because it is permissible in muslim Law .Laws are made to ease our problems but people are misusing it as per their wishes).