If she is the petitioner in the case filed by her against you she must be responsible to attend the same, if she fails to come to court repeatedly then she is playing mischief with the court, this must be stopped. You can file a memo stating that she or her lawyer always are taking adjournments on some false and frivolous grounds and that the court must direct the appearance of the party on the adjourned date of hearing without fail as the case is getting dragged on for a very long time.
If she has produced a medical certificate informing the court that she is bedridden and that she cannot come to court, you can ask your advocate to seek for the appointment of a court commissioner who can record her evidence at her residence or hospital and save precious time of the court.
If your wife has failed to file her objections or counter in your divorce petition then you can request the court to proceed with the case and grant you a decree of divorce. Immediately after the decree is granted, you may proceed to re-marry and if your wife wants to challenge the decree she will have 90 days to do so, before this you can complete the marriage proceedings.
If she is also working and earning better than you, then also she is entitled to maintenance but the quantum or amount that she would be eligible will be less compared to what the court has currently ordered you to pay her.