Section 149 of companies act 2013 contains provision which require that every company shall have to constitute Board of Directors.
Types of Companies and minimum or maximum limit of board of Directors

Only an Individual can become a director in a company
Any adult person can become a director in a company. The act does not mention anything about minimum age criteria to become a director that means minimum age shall be 18 years
Yes a company have to appoint at least one Woman Director (Rule 3)
Maximum 15 Directors can be appointed by a company. However, the limit can increase after passing a special resolution
DIN stands for Director Identification Number. It is an eight numerical digit number. Any person intends to become a Director compulsorily needs a DIN
Every company must have at least one director who stays in India for a period of not less than 182 days in a financial year
DIN is used as DPIN for Designation Partner Identification number for the purpose of Limited Liability Partnership or LLP
Minimum Number of Director in a Company
One Person Company | Single Director |
Private Limited Company | At least 2 Directors |
Public Limited Company | At least 3 Directors |
Class or list of company requires appointment of a woman director

- Every Listed Company
- Every other company having
- Paid up share capital of One Hundred Crore Rupees or More, or
- Turnover of Three Hundred Crore rupees or more
Note: The turnover and capital should be based on latest audited financial statements
* Listed company means which is listed in any stock exchange
Duties of a Director

- He should always act according the rules and regulations of the company
- He must act for promotion of the company
- Perform his duties with reasonable care
- He should always avoid working towards his personal benefits
- Must not assign his place or office to anyone, as it is void
To read about reactivation of DIN after disqualification under section 164(2)
To read more about Board of Directors visit here