Siva Karthikeyan starrer Don had a very good start at the box office, as it collected Rs. 10 crores approx on its first day. This includes Rs. 8.50 crores approx from Tamil Nadu playing over 520 locations, which is the second-highest opening day number for a Siva starrer, just behind his 2018 release Seemaraja. The first-day box office collections of Don are the fourth highest this year in Tamil Nadu, just behind Beast, Valimai and RRR.
The film scored over Siva’s previous release Doctor which opened at Rs. 7.30 crores on a Saturday last year but that had 50% capacity restriction limiting its business in urban centres. The main difference between Don and Doctor came in these urban centres. Chennai, Coimbatore and Trichy made gains over Doctor while other areas were largely similar. Chennai city alone had a lead of Rs. 40 lakhs for Don over Doctor.
The initial audience reports of the film are on the positive side. The pre-sales for the second day are better than what they were for the opening day, so if the walk-ins go as expected, it is possible that film grows on Saturday in Tamil Nadu. A day two growth is an extremely rare sight in the southern states for big movies, if that were to be the case for this film, that will be very impressive. The weekend in Tamil Nadu is expected to be Rs. 25 crores plus, with a good chance of hitting Rs. 27-28 crores. Outside Tamil Nadu, the film fared best in Karnataka with Rs. 75 lakhs opening day. 
The territorial breakdown for opening day box office collections of Don is as follows:
Tamil Nadu - Rs. 8.50 crores
AP/TS - Rs. 50 lakhs
Karnataka - Rs. 75 lakhs
Rest of India - Rs. 20 lakhs
Total - Rs. 10 crores
