NIT

Well, the best colleges through JEE Mains are:
NIT Trichy: average CSE package (17 to 20) LPA.
IIIT Hyderabad: average CSE package 26 LPA
NIT Rourkela: average CSE package (15 to 18) LPA
NIT Suratkal: average CSE package 17 LPA
NIT Warangal: average CSE package 18.55 LPA
NIT Calicut: average CSE package 15 LPA
NSUT, Delhi: average CSE package 17 LPA
DTU: average CSE package 15 LPA
MNNIT Allahabad: average CSE package 15 LPA
IIIT Delhi: average CSE package 18 LPA
IIIT Allahabad: average CSE package 16 LPA
BIT Mesra: average CSE package 14 LPA
IIIT Bangalore: average CSE package (17 to 20)LPA. This college offers Dual degree programme M.Tech not B.Tech. NIT Kurukshetra: average package 7 LPA
IITH, IIITD, IIITB are private institution & rests are Government institutions.

If you JEE Mains rank is 47000 in OBC then you get cannot the best IIT even if your CRL rank is 65000, you can't also get into NIT. I am not demotivating you but I have 2 to 3 suggestions for you,
1. Take drop and aim for IIT Bombay and it is achievable if you don't repeat your mistakes. (I will prefer join any online coaching)
2. Go for state level CET exams and go for state level best college.
3. Some private colleges such as Lovely Professional University and etc. accepts low score of JEE Mains also, it is a good option. Go for JAC counselling, state counselling accepting JEE Mains score. I am from Maharashtra, but I know that this year UPSC was cancelled and getting colleges on the basis of JEE Mains.
4. If you have enough time and preparation, go for JEE Advanced and go for lower IIT, if you are able to get lower rank.

First of all, congratulations on your results. The National Testing Agency NTA conducts the JEE exam for admission to premium IIITs and NITs. Recently, it has released the JEE Main Cutoff for 2022, and usually this cutoff is of two types: the qualifying cutoff and the admission cutoff. The admission cutoff for JEE Main will be the opening and closing ranks for each institute and will be released by JoSAA (joint seat allocation authority). Based on the information you have given, you have a chance to get admission into select NITs like the National Institute of Technology (NIT) in Rourkela, the National Institute of Technology (NIT) in Arunachal Pradesh, and the NIT in Mizoram. However, it would also depend on the course you wish to enroll in. Like at NIT Rourkela, the cut-off for B.Tech. In food process engineering was around 45,000 in 2021. You can also use the Shiksha platform's JEE Main College Predictor 2022 (https://www.shiksha.com/engineering/jee-main-college-predictor) to get more specific recommendations based on courses, fees, and rank. Here you need to enter your JEE rank or percentile, gender, category, and domicile to get recommendations of possible good colleges.

First of all, congratulations on the rank you got in JEE Mains. You can get a seat very easily in these NITs like MNIT (Motilal Nehru National Institute of Technology) Allahabad, VNIT (Visvesvaraya National Institute of Technology), and NIT Bhopal. You can apply to any of these NITs based on your convenience, such as distance from your home, etc. Also, You can use the Shiksha platform's JEE Main College Predictor 2022 (https://www.shiksha.com/engineering/jee-main-college-predictor) to predict all possible courses and institutions. Here you need to enter your JEE rank or percentile, gender, category, and domicile to get recommendations of possible good colleges.

As per the latest revised JEE Main eligibility criteria for 2022, 75% of the criteria are removed for NITs, IIITs, and GFTI admissions. Candidates must currently pass class 12, regardless of percentage. So, if this criteria remains in place in the coming years, you may be able to gain admission to an NIT if you perform well in the JEE Mains. Also, the attempt-wise eligibility for JEE is three consecutive years from the year of passing in 10+2 or its equivalent. As per this rule, considering 2023 your first attempt, you can appear for JEE in 2024 and 2025. You should wholeheartedly prepare for JEE Mains and try to get a decent rank to get admission into top NITs.