What is the name of hindu festivity during four sarturdays of September October ?

[Soomy]

Hi,

I'd like to know the name of hindu festivity during four sarturdays of September October (between 24 sept and 15 oct 2011) ?

This festivity is for Tamil people only ? Should we eat vegetable ?

Thanks

[NOV]

The month is called Purattaasi and the celebration is called Purattaasi Virutham


Purattasi Masam, or Puratasi, is the sixth month in a Tamil calendar and is dedicated to Lord Venkateswara (Lord Vishnu). Saturdays in the Purattasi month are dedicated to Lord Shani and special prayers are offered for escaping from the bad effects of Sani in one’s horoscope. 2011 is from September 18 to October 17. Special pujas and prayers are observed on Saturdays in Puratassi month to please Shani Bhagavan.
Legend has it that Lord Venkateswara appeared on earth in Purattasi Masam. Lord Vishnu devotees consider Puratasi as the ideal month for thanking Lord Vishnu for preserving the Universe. Lord Vishnu is believed to do the job of preservation in Hinduism.
Special prayers are offered at the Srirangam Ranganathaswamy Temple in Purattasi Month.
Another legend suggests that Lord Saneswara (Shani) loses his powers in Puratasi month and so it is easy to escape his malefic influences.
Devotees of Lord Venkateswara take only a meal on Puratasi Saturdays. Some devotees only eat vegetarian food during the month.
On Saturdays, Naamum, the two feet symbol of Lord Vishnu’s feet, is drawn on the forehead by males and women opt for a red dot. Hymns dedicated to Lord Vishnu are chanted on Saturdays.
Devotees in large number visit Lord Vishnu temples and special flags with Garuda emblem are hoisted in Vishnu temples.

http://srivenkateshagovinda.blogspot.com/2011/07/puratasi-masam-2011-tamil-month.html

[chevy]

Purattasi Saturday is an auspicious day.