Gokarna flowers | how to grow gokarn shankhpushpa aparajita flowers

I have always loved this bright blue flower since my childhood.

generally these flowers are sen growing on a kaman (fence in english).Deep blue flowers with light yellow markings peeping out dense light green foliage. This is another flower which attracts butterflies of the winged variety. 
 had got a bunch of seeds planted them in a pot and to my surprise within 1 month i saw the plants growing 

I was delighted and my joy know no bounds when i saw the first beautiful blue flower today

This blue flower is named Clitoria ternatea, common names including butterfly-pea, blue-pea, and cordofan-pea, is a plant species belonging to the Fabaceae family.

It is called Butterfly pea, blue pea vine, mussel-shell climber, pigeon wings in English; Aparijita in Hindi and Gokarna or less commonly Shankhpushpa in Marathi.

gokarn means they resemble cows ears

the blue butterfly pea (Clitoria ternatea)is more common than the white one. It is a perennial, herbaceous vine mostly grown on fences. The leaves are pinnate with 5 to 7 lobes and give good foliage.
The botanical name Clitoria relates to the shape of the flowers which are almost 2 inches long and borne singly. The term ternatea comes from Ternate, a cone shaped island in Indonesia.
The most striking feature about this plant are its vivid deep blue flowers; solitary, with light yellow markings. They are about 4 cm long by 3 cm wide. There are some varieties that yield white flowers.
The fruits are 5 – 7 cm long, flat pods with 6 to 10 seeds in each pod. They are edible when tender.
It is grown as an ornamental plant and as a revegetation species (e.g., in coal mines in Australia), requiring little care when cultivated. As a legume, its roots form a symbiotic association with soil bacteria known as rhizobia, which transform atmospheric N2 into a plant usable form, therefore, this plant is also used to improve soil quality through the decomposition of N-rich tissue.
Uses

1.In traditional Ayurvedic medicine, it has been used for centuries as a memory enhancer, nootropic, antistress, anxiolytic, antidepressant, anticonvulsant, tranquilizing and sedative agent.
2.Extracts from the root and the flowers have a range of antimicrobial activity and is used in ayurvedic medicines. The extract contains biologically active peptides called cliotides which have potential to be lead compounds for novel antimicrobial and anticancer agents. Wow!
3.It is used to strengthen hair, improve eyesight and enhance immunity in Thai medicine. 

4 In Burma the flowers are dipped in batter and fried .The flowers can also be used to color food; grind the flowers with water or milk to get blue or with little lemon juice to get red color.