1) Hero (Surya) gets Heroine1 (Meghna)'s number. Here is the clip:
2) Hero says that he lived in University Ave for 40$. The story is assumed to be in 1995s. With US inflation at (http://www.usinflationcalculator.com/), I calculated it to be 59$ ~ 60$. From: http://www.law.berkeley.edu/142.htm, I can at least see bunch of them in 60$ range. Close enough.
3) The story is set in 1995 and you can see while he "roams around the city" that there are cut-outs of Jayalalithaa (the current Tamilnadu CM) here: