NIT Uttarakhand though sounds promising due to the NIT tag but UIET Chandigarh is definitely better than the former. UIET Chandigarh is affiliated to PU (Panjab University), which has a NIRF ranking of 72 whereas NIT Uttarakhand is yet to make it to the NIRF ranking list.

Here are some of the reasons that made me choose UIET over NIT Uttarakhand:

1. UIET is affiliated to PU, which is one of the oldest and finest universities in India. Unlike, NIT Uttarakhand which is comparatively a newer institute.
2. NIT Uttarakhand is located in the northern part of India, Srinagar. It is close to nature but away from the industrial hub. Unlike UIET which is located in the capital city of Punjab, Chandigarh. This provides exposure to industries and opportunities.
3. UIET Chandigarh encourages students to participate in various activities preparing them for their careers ahead.
4. The admissions in both of these colleges are through JEE Main.
5. Both of these colleges also offer scholarships on a need and merit basis.

The facts in the table will give you an idea about their placements and course fees - 

The only drawback of UIET is the poor campus infrastructure. Whereas, NIT Uttarakhand being a newer institute is well-equipped with all the necessary amenities. The infrastructure of NIT Uttarakhand is far better than UIET Chandigarh.

So, it’s a clear choice for you, to go for UIET. The only reason why someone will prefer NIT Uttarakhand over UIET Chandigarh is either for their love of mountains and a beautiful campus or the NIT tag.