its about secret

2. About Surat
 Surat was Known as Suryapur in olden days.
 Surat is knows as the Diamond City of the
World.
 Surat is Famous for its Clothes.
 Surat is also Famous for its Texttile.

3. Diamond
 A Diamond is a very Costly Thing.
 It can be Sold in Trillions.