Are you planning to show them all in a single workshop ?
Showing them all in a single stress can be too much. Better if you go
one by one.

GCC and GDB will be the primary topics. The others will be demonstrated to grow their interest, and in their own interest they will be picking them up.

Sankarshan Da's idea of toy projects is surely good. I will definitely discuss this.

About people from outside taking part, I will have to take it up with the college authorities and will laet you know soon.

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Yours sincerely,
Dipanjan Chakraborty