Hi Aspirant

There are several options available for you .You must check once what interest you because in higher education you have to read  a lot so you muct opt for your interest area subject so that you won't feel suffocated.List is given below.

• Theory of Relativity (PHY F315)
  
• Quantum Information and Computing (BITS F386)
  
• Introduction to Astronomy and Astrophysics (PHY F215)
  
• Nonlinear Dynamics and Chaos (BITS F316)
  
• Physics of Semiconductor Devices (PHY F426)
  
• Advanced Quantum Mechanics (PHY F421)
• Advanced Electrodynamics (PHY F424)
• Introduction to Quantum Field Theory (PHY F412)
  
• Group Theory and Applications (PHY F422)
• Special Topics in Statistical Physics (PHY F423)
  
• Quantum Optics (PHY F423)
  
• Particle Physics (PHY F413)
• General Theory of Relativity and Cosmology (PHY F415)