Just found this interesting e-book (in Spanish) on the Keralan way to socialism and development though decentralization and direct democracy:
ESTADO KERALA, INDIA: UNA EXPERIENCIA DE PLANIFICACIÓN PARTICIPATIVA DESCENTRALIZADA. RICHARD W. FRANKE, MARTA HARNECKER, ANDRÉS SANZ MULAS Y CARMEN PINEDA NEBOT, 2009. (PDF document).
Sadly I have not been able to find it in English version by the moment, though I presume that there exists one.
The paper is a critical reflexion on the achievements and limitations of the rather successful Keralan policies of the last half century, marked by a strong interest in decentralization and cooperative and participative development. The Indian SW state of Kerala has got an elected communist government since independence, except for a recent interlude at the hands of the Congress Party, that has applied innovative policies within the Indian and global capitalist frame, including a radical agrarian reform early on. Kerala is the Indian state with the highest human development index and 91% of its inhabitants are literate (compared with only 66% in all India).