Where to extract data for further analysis of the companies?

1.  Annual Reports
   
   
   
   
   
2. Investor Presentation

   
   
3. Concalls
   
4. Quarterly Filing 

   

   
   
5. Credit Rating Reports 

   
6. Corporate Announcements 

   

   
   
7. Newspaper publication

   

   
   
8. Environmental Clearance

   

   
   

   
   
9. Industry Associations