As you want here I am telling process to get Delhi Police Constable Recruitment admit card :

Go to the Delhi Police official website

Click on recruitment option at the home page

By click there you will land on next page

Where you need to click on Delhi Police Constable Recruitment admit card link

By click there you will land on next page

Where you need to click on Lucknow link

By click there you will land on Delhi Police Admit Card Lucknow page which look like this image :