Traditionally, India was recognized as a fish-eating country, but it was only after Independence that fishery has been recognized as an important allied sector of Indian agriculture. Over ten-fold increase in fish production-from 0.75 million tonnes in 1950-51 to 8.0 million tonnes in 2009-10 amply justifies vibrancy of this sector that has been exhibited in the country during the last six decades.

Agriculture is the core sector of Indian economy. The share of agriculture and allied sectors in total GDP presently is about 16 percent and it engages nearly 52 per cent of the national workforce. Agriculture therefore continues to remain the principal source of livelihood for the majority of households in India.

Fisheries form a major source of employment, income and livelihood for most of the people inhabiting the coastal region. Women in fisheries are in general labelled as imperceptible wokers as their contributions are not adequately apprehended and realized. Fishing in India is the main stay of men but women too play a major role in pre and post harvest activities.

Of the several methods available for producing biodiesel, trans-esterification of natural oils and fats is currently the method of choice. (2007)