Question

give a comparative analysis of sectional interest groups and public interest group

Answer 1

Sectional group thinks for betterment of their group members only.
Public group thinks for the betterment for different groupsof society.

Answer 2

Public interest groups and sectional interest groups are the pressure groups over the govt. But then they are different from each other.
•Sectional interest groups:
seek betterment of only one section of
society.
•Public interest groups:
seeks welfare of the society and not only one section of society.