Explanation:

Only statement 1st is correct.

Fortified Rice

• The Food Safety and Standards Authority of India (FSSAI) defines fortification as deliberately increasing the content of essential micronutrients in a food so as to improve the nutritional quality of food and to provide public health benefit with minimal risk to health.
• Various technologies are available to add micronutrients to regular rice, such as coating, dusting, and ‘extrusion’.
• The last mentioned involves the production of fortified rice kernels (FRKs) from a mixture using an ‘extruder’ machine.
• It is considered to be the best technology for India.
• The fortified rice kernels are blended with regular rice to produce fortified rice.

Extrusion Method

• Dry rice flour is mixed with a premix of micronutrients, and water is added to this mixture.
• The mixture is passed through a twin-screw extruder with heating zones, which produces kernels similar in shape and size to rice.
• As per guidelines issued by the Ministry of Consumer Affairs, Food and Public Distribution, the shape and size of the fortified rice kernel should resemble the normal milled rice as closely as possible.

Hence option 3rd is correct.