ok, finally I have made it and wrote a pattern for it.
It's been really tough to make this one, mainly because you have to keep it flat, but this is the easiest way to make a mandala using the granny square.
I have used a cotton yarn for this, however you can use whoever yarn you like it will still look pretty and beautiful.
Scroll down for the written pattern
4MM crochet hook
Cluster: 3 double crochet in 1 space
Ch6, join to form a circle.
ROW 1 ch3,2dc in the ring, ch1, 3dc in the ring considered as cluster, make 6 clusters with ch 1.
ROW 2 ch3, in the next space, make cluster, ch1, cluster. repeat in all spaces. join.
Row 3 ch3, cluster in the next space, ch1, cluster in the next space, repeat till end of the row.
ROW 4 repeat row 3
Row 5 repeat row 2
ROW 6 and 7: repeat row 3
ROW 8 : 2 clusters in one space, 1 cluster in the next space, alternate till end of round
Row 9 to 12 : Repeat row 3
Row 13 : Repeat row 8