Examine the structural challenges faced by Left parties in India in reconciling parliamentary participation with their ideological commitment to mass mobilisation.

Left parties in India are cadre-based formations committed to class-based mass struggle, yet they contest within a liberal parliamentary democracy. The CPI(M)'s rectification campaign of September 2026, which flags "alien class influences like parliamentarism" [1], shows this tension is structural rather than incidental.

Ideological tension: parliamentarism versus revolutionary purpose

• Marxist-Leninist theory treats the legislature as one platform for mobilisation, not an end; prolonged office-holding breeds "parliamentary opportunism", identified as an emerging trend by the party's own election review [2].
• Electoral arithmetic pushes the class agenda toward welfare delivery, coalition management and candidate-centred campaigning.

Erosion of the "mass line"

• The mass line — learning from and returning to the people — weakens when cadres function mainly as election managers; failure to implement it was flagged as a key concern [1].
• The consequence is a leadership–rank-and-file gap and loss of traditional bases: the LDF fell from 99 seats in 2021 to 35 in 2026, its vote share slipping from 44.4% to 37.4% [2][3].

Organisational constraints

• Democratic centralism is undermined when collective functioning weakens and decision-making concentrates in holders of parliamentary posts [1].
• Mass fronts — trade unions, kisan and women's organisations — get subordinated to the electoral machine, blunting independent agitational capacity.

Governance–mobilisation contradiction

• In office the party must administer a market economy, attract investment and respect fiscal limits, making it difficult to agitate against a state it itself runs.
• Broader shifts from class-based to welfare- and identity-based voting further narrow the space for class mobilisation.

The Left's difficulty is therefore systemic: parliamentary participation is indispensable for influence, yet it corrodes the movement base that sustains it. Institutionalised self-correction, revitalised mass fronts and genuine internal democracy — the direction the Law Commission's 255th Report urges for all parties [4] — offer a way forward, provided elections are treated as an instrument of mass politics rather than its substitute.