Below is the list of diets institutes in Delhi:

• District Institute of Education and Training, Keshav Puram
• District Institute of Education and Training, pitam pura
• District Institute of Education and Training, Old Rajinder Nagar
• District Institute of Education and Training, Darya Ganj
• District Institute of Education and Training, RK Puram Sector VII
• District Institute of Education and Training, Dilshad Garden
• District Institute of Education and Training, Karkardooma Institutional Area
• District Institute of Education and Training, Moti Bagh
• District Institute of Education and Training, Najafgarh

You can check the list of private institutes at this link: http://scertdelhi.nic.in/wps/wcm/connect/43e284004702f1e0bf68ff7d994b04ce/LIST_OF_INSTITUTES_ETE_PVT.pdf?MOD=AJPERES&lmod=175561803&CACHEID=43e284004702f1e0bf68ff7d994b04ce

Hope this helps!