If the Deccan traps date to the K-Pg boundary, then presumably the dinosaurs in the intertrappean beds must be Paleocene? And if so it does seem rather odd that the eruptions should have wiped out the dinosaurs everywhere except in India.
These abstracts:
http://gsa.confex.com/gsa/2007AM/finalprogram/abstract_130709.htm
http://gsa.confex.com/gsa/2006AM/finalprogram/abstract_112451.htm
actually seems to indicate that most of the activity occurred *before* the K/Pg boundary.
Tommy Tyrberg