[help] car using microcontroller

my circuit board is based on 0-logic i.e. it works when 0 is passed to circuit board.

i mean that when circuit is on, circuit board pins has 1 to its pins and gives 0 to all the pins of the microcontroller. therefore when i give 0 value to the pins of the circuit board, circuit board give 1 to the microcontroller.
therefore when button is not pushed, 0 is passed to the pin of the circuit board and circuit board gives 1 to the pin of the microcontroller and microcontroller calls the interrupt.

circuit board is the test board which is very similar to ur (Ajay)
(sorry for so much trouble )

no there is nothing like trouble
so are you still having any problem?

yes !!! interrupt is call without pushing the button !!!

and when the button is pushed, interrupt is not called.

but i want this in correct way !!! please guide me !!

send me a good circuit.. so i can see what exactly you are doing.. ok

all problems have been resolved !!! thanks Ajay for the great help and the best forum i hav seen !!!

you're welcome we are always here for help