Why is Ticket Scalping Making News along with Diljit Dosanjh Concerts?

Not to add to your frustration, but did you also miss out on Coldplay tickets while waiting in that long digital queue? Delhi police have arrested a man accused of ticket scalping Diljit Dosanjh's concert tickets. The recent frenzy surrounding tickets for concerts by British rock band Coldplay and Diljeet Dosanjh has exposed the shortcomings in laws regulating ticket reselling, commonly referred to as ticket scalping or touting. So what is Ticket scalping ?