Chennai: The Centre for Development of Advance Computing (C-DAT),
Did you mean C-DAC or did they change names (like ER&DCI and NCST)?
The Hindu reported "C-DAT" and I am not sure if CDAC has some sub-division that is called C-DAT or if it is a mere spelling mistake.
The good thing is that such initiatives are happening. It would be much better if the initiatives are more open. Keeping track of events happening should help to avoid duplicating free and open projects, initiatives and drives.