Prawns Koliwada

i have been enjoying Prawns Koliwada since the late seventies & early eighties those days there were nearly 20 food joints in Sion Koliwada , Mumbai & all would make the best Prawns & other fishes but Prawns were & still is my favourite but sadly now only 2 or 3 food joints still remain in the Sion Koliwada area & believe me i have tried this in many other places but nothing tastes like the original so after lots of trials & errors & disasters this is the closest i could get so i request you to make this as per the given recipe & please let me know the results so here is the Recipe of

PRAWNS KOLIWADA.
Ingredients
Prawns cleaned & de veined                   500 gms
kashmiri lal mirch powder                       2 tbsp
roasted coriander seeds powder              1 tbsp
roasted cumin seeds powder                    1 tbsp
lemon juice                                              1 tbsp
curd                                                          1 tbsp
ginger & garlic paste                                1 tbsp
oil for deep frying & 1 tbsp for marinating
besan                                                         2 tbsp
maida                                                        2 tbsp
salt as per taste
chat masala for garnishing.
METHOD
strain all the excess oil from the washed Prawns add salt, lemon juice , ginger garlic paste , cumin powder , coriander powder, curd , 1 tbsp cooking oil & let it marinate for at least 30 minutes , again remove all excess water & add the besan & maida mix thoroughly , heat oil for deep frying in a thick bottomed kadai or wok ,when oil becomes hot put the flame on medium & start frying the Prawns , first fry one & taste it for salt etc if fine you can fry them in batches then garnish with chaat masala & serve hot with mint chutney .