Comb. And Graph Theory.
The links below refer to electronic archives of old mid-semestral and semestral examination question papers.

Mid-Semestral	Semestral
Graph Theory 2010-11	Graph Theory 2010-11
	Graph Theory BP 2010-11
Graph Theory 2011-12	Graph Theory 2011-12
Graph Theory 2012-13	Graph Theory 2012-13