I just replaced the bms without removing the wires from the battery, just the the harness connections and everything is looking g fine now with the new bms..
No I did not use a precharge resistor.
The inverter was burned due to overload issue, the electrician upon opening up the inverter showed me the burnt mosfets.
So I bought a similar inverter and connected it and then immediately I turn on the inverter the clicking sound from the bms starts.
Do I need to update the figures in nominal capacity and cycle capacity? It's showing 51ah for nominal capacity and 280ah for cycle capacity @MisterSandals