Is IIIT-Delhi better than DTU for ECE?

Yes, all the branches in IIIT Delhi are considered to be better than DTU CSE. Although DTU has a better brand name, it’s way behind IIIT Delhi in terms of placement, quality of crowd, and research culture. IIIT Delhi's faculty and infrastructure are way better than DTU's. 

IIIT Delhi has a very flexible curriculum allowing students to choose subjects of their choice, unlike the rigid curriculum of DTU. Moreover, the IIIT Delhi curriculum is CS-tailored so you won't have to study Physics, Chemistry, and Biology in the first year. Students are taught Data structures and Algorithms along with many programming languages-Python, C, Java, and Shell Scripting in the first year itself. ECE students at IIIT Delhi are taught more practical and less theoretical knowledge.

The best part is that students are free to choose CSE courses in the 3rd and 4th year which is not possible in DTU. The best option would be to pursue a Master's in CS and a Bachelor's in ECE.

Ultimately, the choice depends on your preferences.