Hello, If your wife is unable to maintain herself i.e., if she unable to earn enough to maintain herself then she can claim for maintenance. And If you have child and the child is in her custody then she can even claim maintenance for your child as well.

Though Court before allowing any maintenance to your wife, will consider capacity of your earnings and other family members who are dependent on your earnings.

Conclusion : Question of whether your wife can claim maintenance or not and if she can, how much she can claim is a matter of fact and circumstances of your case. Therefore consult a lawyer by giving him further details of your case so that he/she can give you worthy advice according to your situation.