Seeling Covered Calls in India

#1
Hello
I am new to the forum and new to the Indian market
I am trying to find few things
1) Is there any online broker which allows "Covered call Writing"
2) What is the normal max Margin loan one can get to purchase shares?
3) Are there 100% loans available to purchase shares , similar to this product which is available in Australia http://www.leveraged.com.au/public/product/index.asp?sect=sha
I wil appreciate if anybody can help
I also woudl like to explore a posibility of marketing some Australian financial products in to India, any brokers please contact me
Thanks
MJ