As @wilsdenrover said, the court case was brought about by venkys challenging the ED's decision to not grant them a No Objection Certificate.
Since that all started they've sold the house and it appears they've been given permission to send an extra £15 million.
I'm assuming this is just sitting in the VLL account until they've run out of money at the club.
What you say about kickbacks, inflated contracts and agent fees all seems to be a likely scenario. We know for a fact that they've done a lot of that in the past. When you read about money laundering in football, this is generally how it's done. From day one they've been doing this stuff and they only tightened things up once the investigation was underway.
There's a case to be made for them being just disinterested in the club but that doesn't explain all the involvement with corrupt agents and corrupt organisations like Kentaro. Throw into that the investigation and a different sort of picture starts to emerge.
Since day one there's always been something dodgy about their presence here, what you say about the way they've financed this whole operation seems more than plausible, although I'm not any kind of specialist on how the Indian finance system works.
There seems to have been enough pressure on them to sell the house so maybe the pressure could get to the point whereby they have to sell the club to relieve it. We as fans can play our part in building up that pressure by getting them in the spotlight.