Today few more things have been added to the ticketing. I checked with the terms and no more possibility to book through Bookmyshow. It shows Closed and does this mean that the tickets for the opening ceremony and the inauguration match is already filled. If so, the response is really good for WPL.
You can visit the stadium to buy tickets. I guess the online quota might be over but offline they might be still selling tickets. I also believe because of cheap ticket cost they are sold-out online. You cannot get IPL tickets for that price. Since it's the first year that why the tickets are dirt cheap. I also read that Kiara Advani, Kirti Sanon and AP Dhillon would perform in the opening ceremony which might also lead to full house.