Information on Indian Mutual funds — NAVs & Dividends — free downloads?

I am interested in Investing in Mutual Funds. For self Analysis purpose I want Daily NAVs and Dividend history of each fund in FREE downloadable form — may be in excel for easy sorting etc. In valueresearchonline.com or moneycontrol.com, i get the info. But I can not download it for analysis purpose. Paid info is avaiable, but at heavy price. Please help. If any site is avaiable?

Need a information regarding PPF.?

I wish to have some clarification regarding the PPF.
1. If i start a PPF account , do I have the option of depositing money quarterly basis, yearly or monthly?
2. If I am starting with 1000, can I increase or decrease the amount I am depositing in PPF in the following months?