bangladesh one's ranking is 7020

In Pakistan, ranking of universities is determined by the HEC. The ranking list (alternative link) is available at the following site:

http://www.paked.net/higher_education/hec_university_rankings.htm

ranking of arora's technological and research institute in hyderabad?

my rank is 175300 in aieee result, which college could i expect?

Here's what you need :

http://www.prashanthpai.com/blog/ranking-of-engineering-colleges-in-karnataka/