Here we are, the Ahmedabad round of regional final was exactly done a week ago, here is schedule for all other cities http://www.tatacrucible.com/corporate/content/schedule2018.html
The venue was actually once again in Gandhinagar in TCS Garima park. This time there were close to 400 teams that came to participate though my guess is that more than 2/3rd of them were TCS teams.
As usual there were 20 questions in prelims with about 4-5 starred questions as tie breaker.
Me and my partner actually got 19/20 right so I can say it was fairly easy prelims, the cut off would have been around 15-16 as per my best guess.
Here are the questions from the prelims where a majority were visual questions.
1. Who is this famous investor?