4. Grades and categories of Posts

1. The posts under the Institute shall be of the grades and categories specified in the First Schedule
2. The Executive Council may direct:
   1. the creation of any new grade or category of posts;
   2. the abolition of any grade or category of posts or
   3. the transfer of any category of posts from one grade to another and thereupon the First Schedule shall stand amended in accordance with such direction.

5. Number and Duties of Posts
The appointing authority in relation to any category of posts shall have, subject to the superintendence of any higher authority, the power

1. to determine the number of posts in that category
2. to create or abolish any post in that category
3. to determine whether any post created in that category shall be temporary or permanent
4. to specify the period for which a temporary post is created, and
5. to determine the duties attached to any post in that category.

6.Appointing Authorities
Appointment to a post under the institute shall be made

1. in the case of a post in Grade II to IV by the Director, and
2. in the case of a post in Grade I by the Executive Council