Jaypee Institute of Information Technology

There's a little correction I wish to make to your question, it is actually JIIT, Noida Sector 62.
Going towards the answer of your question,
I feel that with 73 marks in JEE Mains you might have secured around 1 lakh JEE mains rank, which can easily land you in JIIT Noida-62, but you won't be able to get a seat in computer science engineering or information technology, which are considered more demanding in the college but you'll be able to get a seat in electronics and communication engineering which is equally good w.r.t academics. Also, we have amazing faculty in JIIT Noida-128, wherein you might get computer science engineering as well as electronics and communication engineering.
So feel free to apply for the admissions.

I did a bit of homework for this question. See my friend, JIIT-Noida can offer you an average package of around 4 LPA- 5 LPA and also 100% placement.
Average Package - 3.5/5 Placements - 4.5/5
SNU as per stats, there is no such information available on the average package offered to students but jobs are offered to only 60% of student every year.
Average Package - NA
Placements - 3/5
USICT offers its students average package of around 6 LPA with a good placements stats as well.
Average Package - 4/5
Placements - 4.5/5
Chandigarh University offers an average package around 5 LPA to its students with 90-95% students getting placed each year.
Average Package - 3.5/5
Placements - 4/5.

First and the foremost thing, if you have a JEE Mains rank wherein you can get any government college, go for that.
Next, let's come to the topic of JIIT, Noida:
JIIT has two campuses in Noida i.e. Sec-62 and Sec-128, wherein Sec-62 is considered better in terms of faculty, placements and overall stats.
So, is JIIT worthy of 12 lacs?
If you are planning for a private college, then I will recommend that JIIT is good for you. Spending same or more amount and taking admission in colleges like Amity, Sharda, etc., is no use.
JIIT offers a good campus (a bit small), decent infrastructure, decent faculty, good hostel facilities, a very nicely structured curriculum and yes, secured placement.
If you have fancy dreams about your college, then JIIT is not for you.
JIIT has a good name in Delhi/NCR. According to me, it's a good choice for those who have secured around 50K-60K rank in JEE Mains and are looking for a private college.
Spending 12 Lacs is heavy, but you'll be at a good place.