You should immediately proceed to get the bail before high court or the sessions court. Whether the judge has heard your bail application or not. 

Since substantial amount of money is involved and allegations are serious your father would not be granted bail 

your father would get bail from HC If rejected by sessions court 

Your father would not get bail from sessions court 

Then you should move directly to high court with that order of Monday. 

Wait for decision on Monday 

Dear client

You have to wait the decision of bail application ....in the mean time you have a right to file a application of treatment of accused before the where your case is pending . But tommorow is sunday and the next working day is monday . So you can filed it on monday 

The sessions court has to grant bail in this case. The medical condition of your father must be described and stated in the bail application. If the court does not grant bail then you have to go to the high court. 

The court would most probably grant bail.

1. Medical condition of this nature is no ground for bail and hence the allegation is there of criminal conspiracy then the court is not going to grant bail so early.

2.  So if the Magistrate has not given bail then apply for it u/s 439 crpc before the sessions court and thereafter in high court.

3. Getting bail of this nature is not likely within first 15-20 days of his arrest.

I understand your problem, Section 120B of IPC is Criminal Conspiracy is non-bailable offence. Still you can apply for bail in the Court of ASJ ( Session Judge). You have to file a bail application for the same.

See even if there is medical condition and there is primary evidence of fraud the court may deny bail. In case it is denied before the sessions court you need to move to high court, high court may use its discretion more widely to grant a bail. 

See bail have to be argued and contested also for the sympathy of court medical record of your father can be kept along the application and in grounds same can be pleaded before the court. 

If on Monday bail is rejected before the session court file before the high court there is chance father may get bail from high court. 

bail on medical grounds are possible. If denied you can approach in appellate court

Chances of getting bail from session court are very less because it is a fraud of huge amount. 

You should make application for providing proper medical attention and medicine to your father during the custody period.

You have no option till wait for Monday. Don`t be hasty in this case, if you will appraoch HC, same time will took and bail possibility may dilute.

Medical condition consider by court when some time spent in jail.

If the trial court dismisses the bail application then you may approach the sessions court with a similar application and the high court subsequently if the sessions court also dismisses the bail application, where you will get bail.

You may approach the higher court with a similar application the lower court dismisses the bail application.

Then wait until Monday, if the sessions court also dismisses the bail application, you may approach high court.