Physical and electronic communications were essential for rural development as they would take advanced medical care, education and all other information required for farmers and village development to the villages, said A. Sivathanu Pillai, Chief Executive Officer, BrahMos, Aerospace, New Delhi.

Delivering a lecture in the first technical session of 11th Science Congress at the Gandigram Rural Institute near here on Sunday, he said that the role of satellites was vital because it could take many facilities to rural areas. Knowledge, technology and connectivity were indispensable for sustainable rural development.

The country had natural and human resources abundantly. To add value, knowledge and technological edge was needed. Stating that the country needed massive energy for massive development, he said that tapping conventional energy was a viable alternative. Nano-technology was the best tool to tap solar energy efficiently. Besides, nano technology had been widely used in the field of medicine such as DNA repair, tissue culture and to check sugar level without taking blood samples.

Bio-sensors, developed by an Indian, were also used to cure Parkinson's disease, Dr. Pillai pointed out.

Recalling ancient culture and development of scientific and technological development in the country 2,500 years ago, he said that the country was in the forefront in technology, agriculture, medicine, particularly plastic surgery, and healthcare in the world those days. Even today, the world was either following or modifying those technologies only. India was the first to discover gravitation force.

Population growth, slump in agriculture and poverty haunted the nation in the 1950s. Later, the country became self reliant in food production and topped in the world in milk production. Now the country possessed powerful and sophisticated weapons in the world.

Technological development alone would ensure safety, provide food, healthcare and social security, he added.