The statement suggests that India's pre-existing institutional structures and state-centric approach significantly influenced, and at times constrained, the outcomes and promises of the economic reforms initiated in 1991. To understand this, we must first define the 'well-entrenched state' and the 'post-reforms promises'.

The 'Well-Entrenched State' in India (Pre-1991 Legacy): Before 1991, India operated under a largely socialist-inspired economic model, characterized by:

• Extensive State Control: A 'License-Permit Raj' where government permits were required for almost all economic activities, leading to bureaucratic hurdles and corruption.
• Dominant Public Sector: A large number of Public Sector Enterprises (PSEs) across various sectors, often inefficient and loss-making, but seen as instruments of national development and employment.
• Protectionism: High tariffs and non-tariff barriers to protect domestic industries from foreign competition.
• Centralized Planning: Economic planning was largely top-down, with significant government intervention in resource allocation.
• Strong Bureaucracy: A powerful and often rigid bureaucracy that controlled economic decision-making.
• Vested Interests: A nexus of politicians, bureaucrats, and certain business groups that benefited from the controlled economy.

Post-Reforms Promises (Post-1991): The 1991 economic reforms, driven by a balance of payments crisis, aimed at liberalization, privatization, and globalization (LPG). The promises included:

• Higher Economic Growth: By unleashing market forces, attracting foreign investment, and promoting competition.
• Increased Efficiency and Productivity: Through privatization, deregulation, and competition.
• Reduced Corruption and Red Tape: By dismantling the License-Permit Raj.
• Improved Public Services: Through greater private sector participation and efficiency.
• Integration with Global Economy: Leading to greater trade and technological advancements.
• Poverty Reduction: Through job creation and wealth generation.

How the Institutional Legacy Affected Post-Reforms Promises:

1. Slow and Partial Reforms: The well-entrenched state, with its powerful bureaucracy and vested interests, resisted radical reforms. Privatization was slow and often limited to minority stake sales rather than full divestment. Labor reforms, crucial for industrial efficiency, faced strong political and union opposition and largely remained untouched.
2. Regulatory Capture and Crony Capitalism: While the License-Permit Raj was dismantled, the state retained significant regulatory powers. This led to a new form of rent-seeking, where powerful business groups could 'capture' regulators or influence policy to their advantage, leading to crony capitalism rather than genuine free-market competition.
3. Bureaucratic Inertia and Red Tape: Despite efforts to streamline processes, the deep-seated bureaucratic culture, with its emphasis on rules and procedures over outcomes, continued to create hurdles for businesses and investors, affecting the 'ease of doing business' promise.
4. Continued Public Sector Dominance: The reluctance to fully privatize loss-making PSEs meant that they continued to be a drain on public finances and a source of inefficiency, contrary to the promise of a lean and efficient state.
5. Fiscal Challenges: The legacy of a welfare state and populist policies meant that governments often struggled with fiscal deficits, limiting their ability to invest in critical infrastructure or reduce taxes further, which could have boosted growth.
6. Judicial Intervention: The judiciary, often acting as a check on executive power, sometimes intervened in economic policy matters (e.g., environmental clearances, land acquisition), adding to policy uncertainty for investors.
7. Corruption: While reforms aimed to reduce corruption by reducing discretionary powers, the transition period and the continued interface between the state and market created new avenues for corruption, undermining the promise of a cleaner system.
8. Infrastructure Deficit: The state's historical underinvestment in infrastructure meant that even with private sector participation, the massive infrastructure deficit persisted, acting as a bottleneck to higher growth.

In essence, the 'well-entrenched state' did not simply disappear with the 1991 reforms. Its institutional structures, bureaucratic culture, political economy of patronage, and the power of various interest groups continued to shape the reform trajectory. While India achieved significant economic growth post-1991, the full realization of the reforms' promises – particularly in terms of efficiency, transparency, and equitable growth – was often diluted or slowed down by the persistent legacy of state control and its associated challenges. The reforms became a process of navigating and negotiating with this powerful institutional inheritance, rather than a complete break from it.