You can accept the share application money, but before making an allotment against the share application money so received, ensure that the paid up capital of the Company after making such an allotment is within the Authorised Capital of the Company.
In case, it is likely to exceed, then before making an allotment, you will have to increase the Authorised Capital of the Company.
If the Authorised Share Capital is already fully paid up, further share application money cannot be accepted without increasing the ASC as there is no scope for further allotment. First get the ASC increased and then accept the application money.