I have been involved in starting(in 2004) and mentoring a group named Boltzmann that consists (largely) of IITM students interested in physics. The main goal was to let students rediscover the joy of learning . Boltzmann meets on Saturday mornings during the IITM semester.
Here is a short set of demonstrations in chaos. The demos were created for the Technical Festival SHAASTRA 2000 at IITM.
I am associated with a Children's Science Magazine called Jantar Mantar .
Here is a random set of articles which I have collected.