This Saturday I am going to Karnala Fort so please guide me for transport from the panvel, we are using public transport any public transport available or not?

Don't go by rickshaw they will charge you a hefty sum
Instead take a bus which goes to alibaug route in that take a ticket for karnala bird sanctuary and tell the conductor to stop the bus at the scantury.
The entrance for the Fort and Scantury is the same

Pen bus asatat panvel stand hun kiva ITI panvel samorun maximo milatat 30-40₹ ghetil