Hello Aspirant,

Hope you are doing well.

Both colleges are good , you can go either way .

IIIT Lucknow has got a better placements and coding culture , great location ,better syllabus which is more focussed on CS and IT and carries a better tag with it but IIEST is quiet old and established and has a better infra and all as of now . So you can decide according to your priorities. Both are comparable in CS / IT so decide on your priorities but for any other branch prefer IIIT Lucknow .

Visit this link for more information

https://www.careers360.com/university/indian-institute-of-information-technology-lucknow

All the best for your future