NP-completeness, Prajakta Nimbhorkar (CMI) (slides)
Hilbert's tenth problem, S P Suresh (CMI) (slides)
SAT solvers, Meena Mahajan (IMSc) (slides)
Polynomial identity testing, Amit Kumar Sinhababu (CMI) (slides)
Finite graphs for infinite functions, C Aiswarya (CMI) (slides)
A panorama of computational problems, C Ramya (IMSc) (slides)