As explained by its name, AGM is an Annual meeting which is held by the board of directors. It is necessary for every company to hold his meeting, whether public or private, limited or unlimited or has a share capital or not.
How much is the GAP between two AGMs?
The FIRST AGM of the company must be held within 9 months from the closing date of the financial year. For example: the financial year ends in March 2018 so if it is the first AGM, it must held by December 2018. (NOTE: No time extension is allowed for first AGM)
The subsequent AGMs: There must be one meeting in each calendar year. If the meeting is adjourned due to some reason and is shifted to next calendar year by any reason, it will not be considered as meeting of that year. For Example: if the meeting is scheduled for 30 December, 2018 and by any reason for adjournment, gets shifted to 3 January, 2019, It will not be considered as a meeting for 2019 calendar year.
The gap between two AGMs must not be more than 15 months. An extension to the same can be for a maximum period of 3 months.