You will need to discover/find out a true and genuine electrician for this to check if the swap is full and correct, once that is verified then the drivability issues will need to tackled.
By your childish question of “plz tell me good mechanic in khi” its proof enough that you bought this as “chota mota kaam sahee karalemge”
This is why I tell everyone to not buy a swap or do a swap unless you are a mechanic or want to become one.