You are working in the Department of Education, Government of Nationcal Capital Territoy of Delhi.
You are government teacher and want to complain against the principal about being overlooked for a promotion. Often taking on or complaining about a senior officer in the government service is not looked upon well and at times for a regular employee, life becomes difficult. I am not advising that you should not complain but please think and gather the facts in hand.
Make of list of your intended compliants and the issues that you think are going against you.
Cross check with the guidelines and rules. For instance if you have to be promoted what all is needed including a favorable recommendation from the Principal. Do you belong to any reservation category. Do you have any complaints against yourself. How is your performance as a school teacher.
Once you have all this in hand, then with a calm mind set a meeting with the Principal and request him/her to help you. Find out have you made any mistakes or misconduct that is holding against you? Have you annoyed the principal by loose talk, gossip etc? all this becomes important. Please allow some time for the discussion and then revert back. If you find progress, the you can avoid complaining. If you do not find any progress, then you can take the path of a formal complaint.
For this you need to have all evidence in hand, any compliants handling committee will not stop at just listening or reading your letter. They will ask for evidence. For instance, if you say that you are senior enough to be promoted, then you should have all your service record statements, performance, attendance record etc. Basically you need to have proof of the wrong doing you are suffering. If a junior is promoted against the rules, then you should be able to prove that it is true. Keep the langauge simple and polite, do not get emotional or angered when writing the compliant. Please specific to the point and very clear. The letter should not be sarcastic or very inflammatory. Please remember that any formal compliant you make, it will remain in your file and your langauge and temper should not be a negative factor for future promotions or transfers. Please do not come across as a difficult employee to work with.
It is useful to know hierarchy in your department and the proper channel, including the grievance cell.
The offical pathway to address greviance in GNCTD is via 'The Zonal level Staff Grievance Redressal Committee'.
1.This is found in the link (http://it.delhigovt.nic.in/writereaddata/egaz20165233.pdf). Please read carefully the Part IV, No:2, this is applicable for grievance of a staff against a Principal of the school.
2. The committee will decide in 30 days time and an order would be passed about the results of the discussion.
3. If you are still not happy you can appeal to the 'District Level Staff Grievance Redressal Committee'.
4. keep records of all the discussion you have had, write down a small diary about what all was discussed at the meeting and what each member said when so that you can have it handy for future discussions.
Attachment show the grievance rules for teaching staff.