Tamil Nadu Science Forum (TNSF)is a people's movement for science popularization among children and masses. It has branches in all the districts of Tamil Nadu. It is a member organisation of All India People's Science Network(AISPN). It is also an active member organisation of National Council for Science& Technology Communication (NCSTC) Networks (http://www.ncstc-network.org/)of Dept. of S&T, India.