Option 1: Protection of workers and children. This directive principle focuses on ensuring the welfare and rights of workers and children. While it is an important principle, it is not specifically associated with Gandhian ideas.

Option 2: Organisation of Village Panchayats as effective units of self-government. This directive principle aligns with Gandhi`s vision of decentralized governance and empowering local communities. Gandhi believed in the importance of self-sufficiency in villages and the participation of villagers in decision-making processes.

Option 3: Equal work for both men and women. This directive principle focuses on gender equality in the workplace. While important, it is not specifically associated with Gandhian principles.

Option 4: Separation of the executive from the judiciary. This directive principle emphasizes the separation of powers between the executive and judicial branches of government. While important for maintaining checks and balances, it is not specifically Gandhian in character.

Therefore, the correct answer is option 2, as it aligns with Gandhi`s vision of decentralized governance and empowering local communities.