1. When convection has been granted then preferring an appeal and applying for stay on sentence remains the top most priority under the present circumstances.
2.SInce the proceeding in DRT is quasi civil in nature and summary in procedure its outcome may not determine the fall out of the appeal to be preferred agaisnt.
3.Howeevr the decree of permanent injunction is likely to be of help to the appeal case as order of civil court is binding on criminal court.
4. So no new case in Calcutta will help tide over the situation in present circumstances.rather the appeal can resolve the contextual anomaly and will help immensely the appeal to set aside the conviction.
If the relevant papers are shared with me then further advice can be given.