@ author 1 Dalesh
Maintanence should be paid from the date of application of HMA u/s 24.
Next if your wife is working or is highly qualified and capable of working she cant claim maintance for herself but for her children provided provided the children are with her and not with you . If the children are with you than no need to pay mainatenence .
@ Author 2 Deepak
For your two sons as they are with you and if she has not filed any relief u/s 21 of the DV act than you dont have to pay maintanence for your two sons . In the court of law if your two sons state that they want to live with you and in case she has asked for relief u/s 21 of the act she want get the same and neither maintanence for the sons as they want to live with you .
Now the question of maintaence for your wife comes into question for which falling facts are required
1. Is she highly qualified .
2. Has she worked before or is she capable of working .
Now move away from your mothers place and take a small rented place and stay . If she has asked for relief u/s 19 of the DV act that is right to residence than let her park her aXX at the rented place and when she has moved to the rented place you move back to your mothers place but continue pay the rent of the place .
AS regards to maintanence please PM me will give you a solution .