Let me try to put some light on this...
(Makhan Ghad - Butter which was put in a container for 1 month.
Masala - It is a Indian mixture, will post the combination shortly.
Rason Khol - Garlic dust (Pest the garlic then dry and dust it.)
Hookbait (4 Hook Setup): Bread , Ghee, Coconut Dust, Honey,
Masala Bakos (My Special Formula for katla) - Very difficult to explain but will do shortly.
UCK katla Spray - don't know.
First of all, thx for sharing ur formulas... But regarding the dead fishes, everybody should know that the Bengal fish culture is little bit different from other state as well as country. Here in Bengal everybody fishing for killing the fish and that is why.. most of the lake and pond don't have the good fishes at this moment and this is very sad.
So we are trying to change this culture (which is extremely difficult but not impossible). Please take a camera with you and took some decent pictures so that everybody should enjoy your capturing (Nothing is impossible if you try that carefully).