If you go college wise then DTU is an outstanding choice and branch (which you have given) wise IGDTU is better. So I would suggest you to go as per the branch only, choose the college where you are getting your desired branch.

To check all about both the colleges, you can go through the below links -

Indira Gandhi Delhi Technical University for Women, Delhi

Delhi Technological University, Delhi

Hope this helps!!!

You should go for DTU as it is outstanding college and offers very good placements. 

DTU Delhi

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