Which of the following statement(s) is/are correct about the ‘Kashmiri saffron’?
1. It is unique in character in terms of shorter and thinner stigmas, natural deep-red colour, high aroma, bitter flavour and high quantity of colouring strength.
2. It is the only saffron in the world grown at an altitude of 1,600 m to 1,800 m above mean sea level.
3. The saffron cultivation was introduced in Kashmir by Central Asian immigrants around 1st century BCE.
4. It has been recently accorded a GI tag.
Select the correct codes from below -