Siddharth Srivastava (Advocate) 03 April 2020
Nothing special. Just write your complaint in your language.
G.L.N. Prasad (Retired employee.) 04 April 2020
If you wanted to inform something important on a criminal matter and bring the knowledge of police on that clandestine affairs, you can file a complaint under "Whistleblower policy direct to Supdt of Police and specifically request him to keep your name as secret in view of your personal security. It is a must that you have to provide prima facia evidence to substantiate your complaint. There is no prescribed format. Do not send Anonymous complaint as Govt. depts., are not supposed to act on such Anonymous complaints.
T. Kalaiselvan, Advocate (Advocate) 06 April 2020
There is no specific format or skill required to submit a complaint to the police.
You are at liberty to write the complaint in your own language and in the format which you know.
If you feel any difficulty then approach any advocate for assistance.