The demand for readymade foods in India has increased mainly due to:
Catering to the needs of working women (iii): With more women joining the workforce, the time available for cooking has reduced, increasing the preference for convenient, ready-to-eat foods.
Changes in lifestyle (iv): Urbanization, fast-paced lives, and greater exposure to global food habits have increased the demand for quick and easy food options like readymade foods.
Why other options are incorrect:
Deficit in agriculture (i): While it affects food supply, it does not directly increase demand for readymade foods.
To decrease the nutritive value of diet (ii): This is not a reason; on the contrary, people prefer foods with good nutrition.
Therefore, factors (iii) and (iv) are responsible for the growing demand for readymade foods in India.