Define planning systems and social welfare from first to eighth plan.

It seems there might be a misunderstanding in your question. If you are referring to the planning systems and social welfare programs in the context of India, you might be asking about the Five-Year Plans. However, the information provided here is based on the assumption that you are asking about India's planning systems and social welfare programs during the first eight Five-Year Plans.

First Five-Year Plan (1951-1956):
The First Five-Year Plan in India focused on agricultural development as a priority. The objective was to increase food production and achieve self-sufficiency. Efforts were also made to develop basic industries. Social welfare programs during this period included initiatives for healthcare, education, and community development.

Second Five-Year Plan (1956-1961):
The Second Five-Year Plan emphasized industrialization, particularly heavy industries. There was an increased focus on scientific and technological development. Social welfare programs expanded, addressing issues such as poverty alleviation, rural development, and educational reforms.

Third Five-Year Plan (1961-1966):
The Third Five-Year Plan aimed at achieving self-sufficiency in food production, emphasizing agriculture and irrigation. Social welfare programs included poverty alleviation, community development, and family planning initiatives.

Fourth Five-Year Plan (1969-1974):
The Fourth Five-Year Plan marked a shift towards building a self-reliant economy. There was a focus on the development of small and cottage industries. Social welfare programs included efforts to improve healthcare, education, and employment opportunities.

Fifth Five-Year Plan (1974-1979):
The Fifth Five-Year Plan aimed at reducing poverty and achieving social justice. It emphasized employment generation, rural development, and measures to address regional imbalances. Social welfare programs focused on providing basic services and improving living conditions.

Sixth Five-Year Plan (1980-1985):
The Sixth Five-Year Plan prioritized infrastructure development and increased emphasis on social justice. There were efforts to reduce poverty and improve the standard of living. Social welfare programs included measures for rural development, healthcare, and education.

Seventh Five-Year Plan (1985-1990):
The Seventh Five-Year Plan continued the focus on economic growth and poverty alleviation. It aimed at improving agricultural productivity and promoting social justice. Social welfare programs included initiatives for women and children, healthcare, and employment generation.

Eighth Five-Year Plan (1992-1997):
The Eighth Five-Year Plan aimed at economic reforms, liberalization, and globalization. It focused on improving efficiency and competitiveness. Social welfare programs included measures for education, healthcare, and poverty reduction.

It's important to note that the subsequent Five-Year Plans continued to evolve with changing economic and social dynamics in India. The planning approach underwent significant shifts in the post-liberalization era, moving towards more indicative planning and decentralized decision-making processes. Additionally, social welfare programs expanded to address emerging challenges and priorities in areas such as education, health, and social security.