Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Season in Tamil | English Transliteration | English Translation | Season in Sanskrit | Season in English | Tamil Months | Gregorian Months |
| --- | --- | --- | --- | --- | --- | --- |
| இளவேனில் | ila-venil | Light warmth | Vasanta | Spring | chithirai, vaigāsi | Mid Apr - Mid Jun |
| முதுவேனில் | mutu-venil | Harsh warmth | Grishma | Summer | āni, ādi | Mid Jun - Mid Aug |
| கார் | kār | Dark clouds, Rain | Varsha | Monsoon | āvani, puratāci | Mid Aug - Mid Oct |
| குளிர் | kulir | Chill, Cold | Sharada | Autumn | aippasi, kārthigai | Mid Oct - Mid Dec |
| முன்பனி | mun-pani | Early dew | Hemanta | Winter | mārkazhi, tai | Mid Dec - Mid Feb |
Question:
What are all Tamil months when the season in English is monsoon?
Answer:
āvani, puratāci