The lab classes for MSc at IGNOU, like the General Physics lab, and Electronic lab sessions are conducted in the respective study centres or Learner Support Centres (LSCs).
The schedule is prepared by the study centres, so I will suggest you to contact the regional centre for details.
This program is different from the usual M.Sc. Program due to the fact that it provides a deeper knowledge not only in Physics but Photonics as well. After this PG degree, students can have an equally poised career in Physics as well as Photonics. While the knowledge in Physics will give the degree holder an opportunity to work in academics and research related to Physics; the knowledge in Photonics will help him to have a career in academics, research, and industry related to Photonics. Numbers of Photonics industries such as Lasers, Fiber Optics, Solar Photovoltaics, Lighting, Displays, etc require personnel trained in Photonics. The program is a perfect blend of Physics and Photonics and it certainly has a very good job potential.