#1 Previous Law Converted Taxpayer – if any individual or companies are registered below the previous tax achievement like support tax or VAT or cst etc then  they have required the New GST Registration.
#2 Turnover basis – if your business sales or turnover cross beyond 40 lakh rupees in a year after that its required the GST Registration. For some welcome like North-Eastern States, J&K, Himachal Pradesh, and Uttarakhand the limit is abandoned 10 lakh rupees in a year.
#3 Event or Exhibition – In the GST Act its called the casual taxpayer. If they don’t have any surviving place of thing then they can apply for the casual taxpayer under the GST Registration. It’s real for a maximum of 90 days (3 months).
#4 Non-Resident Indian (NRI) – if you are a non-resident person of India or handling the concern of NRI in India subsequently it’s required to apply for the GST Registration Online.
#5 The agent of Suppliers or Input tax Distributor – if you are an input tax support distributor after that it’s required to apply for the GST Registration to carry adopt the plus of an input tax credit under GST Law.
#6 Reverse Charge Mechanism – Under GST Law there is term reverse raid mechanism hence if you fall under that category subsequently its required the GST registration.
#7 E-commerce Sellers – if you are an E-commerce Sellers of the leading aggregator portal later Flipkart or Amazon then yes you habit the GST Registration.
#8 E-Commerce Aggregator Portal – if you are thinking to start your own E-commerce concern then for ECommerce Business Registration you dependence GST Registration for the same.
#9 Outside India Online Portal – if you are software as a help company and providing information & database right of entry from outdoor India to Indian visitors subsequently it’s required to register under the GST.

Some important facts roughly GST registration:-

• Registration of any concern entity under the GST Law implies obtaining a unique number from the concerned tax authorities for the point of collecting tax on behalf of the doling out and to avail Input Tax Credit (ITC) for the taxes paid upon his inward supplies.
• Without registration, a person can neither amass tax from his customers nor allegation any bank account of tax paid by him.
• Entities in the same way as turnover exceeds of Rs.40 lakhs (supply of goods in normal state), Rs.20 lakhs (supply of goods/services in usual state), Rs.20 lakhs (supply of goods in specific state) or Rs. 10 Lakhs (Supply of goods/services specific state) and above would be required to register under GST.
• The eligible entities must file GST application within 30 days from the date upon which the entity became blamed for registration under GST law.
• Note Specific declare for GST registration is, (Puducherry, Meghalaya, Mizoram, Tripura, Manipur, Sikkim, Nagaland, Arunachal Pradesh, and Uttarakhand.)