Hello,
For any engineering entrance exam, you need to visit that entrance exam's website and use application form number and password to login into your account and then download your application form.If you have forgotten it then you can click on forgot password/application form number and use your email id to retrieve it.
Good luck.

Yes u can easily get your application form. Just go to site enter application id and password and take print out.

Hello,
Can you please provide us for which exam you lost your application number so that we can help you back with it.