hello ayush agrawal
according to their official website about 90 students were placed from raj kumar goel college in 2018 from cse dept:http://rkgit.edu.in/placements-2018.php they are ranked as above average .
while sit tumkur doen't provide any placement info they are rated as AAAA means a very good college
hope it helps
It is average college. You should go for upgradation.
You can also check your chances in UPSEE by using below college predictor
Good Luck!!