Profession tax enrollment maharashtra

Profession tax -- Maharashtra  ????

is it necessary for a Pvt. Ltd.Co.to obtain both ..profession tax registration no.( as an employer )  and profession tax enrollment no. ( as an entity ) .... ??

also...is it necessary to obtain P.T.Regn No. even if currently there no employees in the company and file nil returns annually for  pvt. co. ??

When is  a pvt. ltd .co.liable to  obtain  Prof. Tax  Regn. No. ??