GST for writers and screenwriters

Dear Friends,

I am a Mumbai based screenwriter and freelance journalist.I write scripttts for film/TV and articles/review for various newspapers in India and abroad. I have also written a couple of books for which I get royalty. I also have a day job with annual package of 22.00 lacs. I earn 6-8 lakh per year from writing/scripttt writing/royalties which will cross 20.00 lakh limit in this Finacial year. My articles are published in all geographical locations. Script writting is in Mumbai only.

Kindly advise me how to tackle this GST issue. When should I register for GST. Do I need help of a CA?

Regards,

Abdullah