I want to know about procedure to become an IPS officer in Indian police service after 12th grade examination ?

To become an IPS officer in Indian police service you have to pass any graduation level degree after passing 12th grade examination than you can apply for IPS exam .. Indian police service officer examination organized by union public service commission below :

Educational qualification :
You have to pass an undergraduate degree in any discipline from a recognized university or equivalent.

Age limit :
Age should be between 21 years and 30 years
Age of 33 for OBC
35 year for SC/ST

Number of attempts
4 times for general and
7 times for OBC and infinity for Sc/St

Physical Eligibility :
Height –
Male 165 cm Pahari Male (general also) & ST (not the SC/ OBC) – 160 cm
Female 150 cm Pahari Female (general also) & ST (not SC/ OBC)- 145 cm

Chest –
Male Minimum 84 cm. Expansion 5 cm.
Female Min 79 cm expansion 5 cm.

Eye sight –
6/6 or 6/9 distant vision for good eye.
6/12 or 6/9 for worst eye.
Near vision J 1 for good eye.
J2 for worst eye.
High standard for the Colour-blind test
No inherent night blindness. Vision should stereoscopic.