Although the provision under 21B says that the appeal should be heard within 3 months, in practice, HCs take their own time ranging from 1-6 years. Also, I could not find any order from Apex Court directing an HC to expedite its proceedings.
In my case, unfortunately, the date for hearing my application u/s 21-B itself has been given after a gap of 3 months i.e. July 2013. When we insisted the Bench said that there was no slot in their calender. I am also in dire need of such a decision of their superior court. Please share if you have any relevant judgements at firstname.lastname@example.org . I am instead considering filing of a Writ Petition in SC u/a 21.
Also you can not get her prosecuted for false evidence given in trial court now since section 340 requires such an application to be filed while the case is still pending. Only the trial court could have prosecuted her. Of course, you can file such an application in HC if she contradicts herself in HC.
With all my best wishes,