Hello Raghu ; preparatory list is made for sc,st and pwd category students.One can get admission from preparatory course list on the following conditions :

1.The seats reserved for respective category are  vacant(SC category seats for you).

2. Candidates have not accepted a seat in the preparatory course earlier.

So

Hello aspirant,

Admission to IIT's are done on the basis of JEE advanced marks and in NIT's are done on the basis of JEE main marks. Also admission to this colleges depends on various factors such as category, home state quota, branch, number of students applied, number of seats, etc.

Hello

With your current rank in JEE Adv, it is tough to get any IIT. You can get an IIT if you were female OBC NCL. I am including the list of IITs that you might get. 

• IIT Bhubaneshwar - Metallurgical and Material Engg. (Female only)
• IIT Bombay - Bachelor

Let's take a comparison

1. Better campus - IIT Dh

2. Better Alumni - IIT Dh

3. Better academics - both are obsolete ie poor

4. Better placements - IIT Dh (though few branches have exceptionaly poor placements)

5. Better fest - IIT Dh

I guess, now the choice is

Hello 

You have got a decent rank 

Getting IIT is tough as cutoffs are very high as per previous year statistics 

Many get closed at 150 rank pwd general

But you should try for nits 

Nit Andhra Puducherry  Jamshedpur are good 

You can get non circuit branches here 

Hello 

Congrats you have got a very good rank 

You will be an iitian 

Coming to the cutoffs based on previous year statistics

Top 3 iits Bombay Delhi and Madras 

Bombay closing rank is 139 for civil engineering at last round 

For Delhi it is 170 

For Madras it is

Hello,

Prep rank or preparatory rank does not mean that you have qualified JEE Advanced. But the prep rank is useful for admitting students to IITs when there is vacancy of seats. When vacany is found in institutes the students are admitted to preparatory course for a duration of one

Hello,

The preparatory rank or prep rank is used to admit students when there is vacancy of seats. There is a specified seat matrix for every category in each institute. If the seats are not filled and remain vacant the counselling authority uses preparatory rank list for admission. The individuals

Hii,I would never recommend you to come here in this department.I belong to electrical department and beleive me it sucks here. The department doesnt have a alumni base,nor any recognization.Even some company that recruit from Jadavpur University doesnt come here for electrical guys.moreever the department doesnt have good faculty