Breaking down the question
The command word is illustrate with examples, which sets an unambiguous expectation: every claim about what pressure groups do should be anchored to a concrete instance. A purely abstract account of interest-group theory, however accurate, will fall short at this ten-mark level.
The focus is narrow and useful — the role of pressure groups specifically in the formulation of social policies, that is, in shaping the policies that govern welfare, health, education, labour and the rights of disadvantaged groups. This is distinct from their role in elections or in influencing legislation generally; the answer should keep social policy in view.
The task, then, is to define pressure groups crisply, identify the distinct channels through which they shape policy, and attach a persuasive example to each channel — ideally a mix of organised interest groups and cause or promotional groups.
For the wider context of power and institutions, see the note on the power elite and political institutions.
How to approach it
Begin with a one-line definition: pressure groups are organised associations that seek to influence public policy without themselves aiming to capture governmental office. Distinguish briefly between interest (or sectional) groups and promotional (or cause) groups, since both shape social policy differently.
Then organise the body around the functions they perform in policy formulation — interest articulation, agenda setting, providing expertise, mobilising public opinion, and monitoring implementation — attaching an example to each. Draw examples from India where possible to show contextual grounding.
Close with a brief balanced note: pressure groups deepen participation but can also skew policy towards the better-organised, a point that shows critical awareness within the tight word limit.
Model answer
Pressure groups are organised associations that seek to influence the content of public policy while stopping short of contesting elections or capturing office themselves. Political sociologists such as David Truman and Robert Dahl placed them at the centre of the democratic process, arguing that policy in a pluralist society emerges from the interplay of competing organised interests. In the making of social policy, they perform several distinct roles.
First, they articulate interests. Groups translate the diffuse concerns of a section of society into specific demands placed before policymakers. Trade unions pressing for social-security guarantees, and organisations of informal workers whose advocacy fed into welfare schemes for the unorganised sector, illustrate how the demands of labour reach the policy table.
Second, they perform agenda setting, bringing neglected issues into public and official view. The sustained campaigning of the right-to-information movement, spearheaded by civil-society groups, forced transparency onto the policy agenda and culminated in landmark legislation. Similarly, women's organisations kept issues of dowry, domestic violence and workplace harassment before the state until they were addressed in policy and law.
Third, pressure groups supply expertise and information. Professional bodies, medical associations and research-based advocacy groups feed technical knowledge into the drafting of health and education policy, shaping its content in ways governments could not achieve alone. Their evidence and consultation often determine the fine grain of a scheme.
Fourth, they mobilise public opinion to create the political pressure that moves governments. Environmental and public-health campaigns have compelled shifts in policy on pollution, tobacco and food safety by rallying citizens and the media. Farmers' organisations, through mass mobilisation, have repeatedly influenced agricultural and welfare policy.
Fifth, they act as watchdogs over implementation, monitoring how social policies are delivered and pressing for correction — a role played by many non-governmental organisations working on nutrition, education and the rights of marginalised communities.
These contributions carry a caveat. Because influence tends to follow organisation and resources, well-funded and articulate groups may shape policy more effectively than the poor and unorganised, introducing a bias into the process. Even so, pressure groups remain a vital channel through which social interests reach the state, deepening participation between elections and enriching the formulation of social policy.
Examiner's perspective
At ten marks the decisive test is whether the candidate obeys the command word. Illustrate with examples means the examiner is scanning for concrete cases; an answer that theorises pressure groups without naming a single movement, association or campaign cannot score well, however fluent it reads.
The most effective structure pairs each function — articulation, agenda setting, expertise, opinion mobilisation, monitoring — with one crisp example, which keeps the answer organised and dense with content. Indian illustrations such as the right-to-information campaign or farmers' and women's organisations show contextual command and are readily recognised.
A short evaluative sentence — noting that pressure-group influence can privilege the well-organised over the poor — lifts the answer above mere description and signals the balance examiners value even under a tight limit.