Benefits of coconut water from a tender coconut are:-

• Good Source of Several Nutrients
• Have Antioxidant Properties
• Have Benefits Against Diabetes
• Help Prevent Kidney Stones
• Support Heart Health
• Reduce Blood Pressure
• Beneficial After Prolonged Exercise
• Delicious Source of Hydration

Dear Sourabh,
Coconut water is the endosperm part of the coconut plant. Endosperm is the most common nutritive tissue for the development of embryos in Angiosperms and develops as post-fertilization structure from the primary endosperm nucleus.
This fluid is compactly filling the embryo sac in which the embryo is developing.

I hope you understand this information

All the best