Brother first check the battery for charging. When car is in OFF condition, voltage of battery must be slightly greater than or equal to 12 Volts. You can check it via Voltmeter / Multimeter.
If battery condition and charging is 100% (and it should be, being brand new) then check that whether wires have been connected with the battery in correct order, or not?
If both of these things are OK, then there must be some issue with wires.