Foreign companies investing in India are permitted to have up to 100% foreign ownership in some India investment sectors, and are forbidden in investing in other sectors.
The Reserve Bank of India has published two lists relevant to this. List A shows those sectors which require special permission for India investment, and List B shows ones which do not allow any foreign investment in India at all.
You can view the entire lists in the following article.
For more information, please contact Dezan Shira & Associates about FDI in India.