Computer Science and Engineering

A rank of 4776 is good enough to get into Delhi Technological University (DTU) for the CSE branch if you are an SC candidate. The 2023 cutoff for the BTech Computer Science and Engineering programme at DTU was 4876 for General All India category students. The last ranks for the B.Tech Computer Engineering course at DTU for candidates from outside the Delhi region in 2024 were 37,183 for SC.

The marks you have scored in your JEE examination is a quite decent one and as you are looking for the colleges in Uttar Pradesh, I would recommend you to get your rank by following link :

https://www.shiksha.com/college-predictor 

You can get admission in any renown private college or colleges such as Invertis University in Bareilly, Mangalmay group of institutions in greater noida, ABES engineering college in Ghaziabad. 

At the UG level, Srinivas Institute of Technology provides a 4 year B.E. in Computer Science and Engineering course to the students. The management fees for BE CSE at Srinivas Institute of Technology, Srinivas Group of Colleges are not explicitly mentioned in the provided search results. This course offers admission to 120 students.

With your rank, to get computer Science engineering in any college in Delhi is very tough. Top engineering colleges in Delhi will have cutoffs much higher than your rank for the CSE branch. Admission to these institutions with such rank is generally not possible.
You can go for some private colleges. 

Yes, 6820 rank is a good rank as it falls between (5000-7000) and admission to B.Tech Computer Science and Engineering at  SRM Ghaziabad. SRMJEEE rank within 20000 is considered a good rank for admission. So, you have an advantage and can easily get admission to SRM Ghaziabad. 

Yes, definitely you can easily get a seat at Amrita School of Engineering Bengaluru in CSE as your marks are better than the criteria. Amrita School of Engineering Bengaluru application forms are available on the official website of the university. Eligible candidates can fill out the application forms online.

If it is a general rank then you can not get in it, especially CSE branch You can't get admission only if you use the home quota other branch you can get at this rank. If it is your category rank you can definitely get an NIT college CSE branch with home state quota that offers. To check for the college in which you are eligible, visit: JEE Main Rank Predictor 2024: Calculate JEE Rank From Percentile/Score.