Sir
According to sub clause (b) of clause (44) of Section 65B of Finance Act, 1994, "service" means any activity carried out by a person for another for consideration, and includes a declared service, but shall not include -
"a provision of service by an employee to the employer in the course of or in relation to his employment."
Since you have stated that you are paying salaries to your directors, that indicates that they are employees of your company. Therefore according to sub-clause (b) of clause (44) of Section 65 B of Finance Act, 2004 the relationship between your company and directors is employer and employee. Hence no service tax is payable on salaries paid by your company to directors.