- M. Sc.– 1988, IIT, Bombay,
- Predoctoral : 1990, IOPB
- Ph.D.: 1995, IOPB
- Thesis Title: Studies of Charged Atomic Clusters.
- Thesis supervisor: Prof V. S. Ramamurthy
- Research Interest: working on reactivity anddynamics of clusters in gas phase, employing lasers, reflectronTOFand sputter sources..
- Postdoctoral: J.N.C., Bangalore (1996-1998).Since July 1998,atGenesis Reserach Inc, Cluster Research Laboratory, Toyota TechnologicalInstitute,EastTokyoLaboratory, Chiba Japan
- Present address:Since April 2004, Sr.Research Scientist,Drug Neuroimaging Research,Functional Imaging Research Center,Medical College of Wisconsin, Milwaukee, 8701 Water Town Plank Road, Milwaukee, Wisconsin-53226,Tel. 414-456-4931 (Office)
- Email: ryadav@mcw.edu , yramkuber@hotmail.com



