Starting problem

1993 Nissan Altima v4

I have some starting problem in my car from long time.
Suddenly It did not start at all but wipers, radio and other electrical accessories were working. From last two time we had to give PUSH to car and it started.

Initially serviceman thought that there was some problem in battery
so we replaced the battery and we also check basic starting system.
Everything looks fine.

So I am tired to spend 75$/hour service charge and towing to just check car and come with nothing. I guess serviceman does not figure out problem.

I do not know so much about car. If anyone needs more information from my side please let me know.

Any advice will be appreciated.

Thank you,

Pratik

possible a bad starter or relay~

i think it might be your ignition cylinder or a "pass-lock" security system if your car comes equiped with it.