Question

Difference between sectional interest groups and public interest groups...

Answer 1

Social interest group just focus on a single society and more narrow points and visions
while public interest groups are concerned with the interests of a whole nation and think of everyones needs 

Answer 2

$</p><p>\huge{\pink{\boxed{\boxed{\purple{\ulcorner{\mid{\overline{\underline{\bf{Answer:-}}}}}}\mid}}}}$Sectional interest groups promote the interests of a particular section or group of society e.g., professional body of lawyers, doctors. Public interest groups promote collective rather than selective good. Their aim is to help groups other than own members e.g., BAMCEF (Backward and Minorities Community Employees Federation).