Vallarai keerai (Centella Asiatica) is an amazing herb used by Indian pharmacologists to prepare a food supplement to improve the memory beneficial to children who are preparing for competitive exams and also to old people suffering from diminished memory. Nevertheless it is better to include such fresh herbs into our diet rather than taking them in capsule form. So we can make vallarai thuvaiyal at home to enjoy its benefits naturally. I personally found a significance difference when vallarai keerai thuvaiyal was served frequently to my father and also to my son.