There are no coaching classes for CFTRI entrance exam.
You refer to basic books - ncert books for chem, phy, bio and maths
You refer food sc by potter for food sc
Further during last 4-5 months practice from OBJECTIVE FOOD…"
As Per FSSAI,
“Best before” means the date which signifies the end of the period under any stated storage conditions during which the food shall remain fully marketable and shall retain any specific qualities for…"