Discussions on the following topics are planned in the working group sessions for WG III (and to be led by): 1. Neutrino Oscillation Physics: a) Latest results and expectations from future experiments (Sandhya, Sushant, Suprabh) b)Non-Standard Interactions (Rathin Adhikari, Poonam Mehta) 2. Neutrinoless Double Beta Decay Theory and Overview of present and Future Experiments (Manimala, Krishna Kumar) 3. UltraHigh Energy Neutrinos (Raj Gandhi, Danny Marfatia) 4. Sterile Neutrinos (Sanjib, Steen Hannestad) 5. Neutrinos in Collider Experiments (Frank Deppisch, Bhupal Dev) 6. Neutrinos and Dark Matter (Danny Marfatia, Jason Kumar) 7. Role of Neutrinos in Leptogenesis (Frank Deppisch, Bhupal Dev) Few of the sessions may be held jointly with WG V. There may be few additional technical talks.