Hi jkandankery,
With regards to your project requirement of creating an application that do a comparison/analysis of given database, I can provide an online application whic will be user controlled. You can upload the data in the application (every now & then) and do the required analysis.
For this project, propose a cost estimate of about $125 and time frame of 3 days to complete the same (once we get all the info like the databse, fields,parameters, etc.)
I await for your positived feedback.
Sumit