I am a 11 letter Indian City

Solve this, if u r brilliant..😇
1. I am a 11 letter Indian city.
2. Last 3 letters is part used inside the computer.
3. 4,5,6 letters is used to store water.
4. 1,5,4 is designing software.
5. 3,7,6, is computer company name.
6. 2,5,6,8,11, is a soap name
🔧101% brain work.🔨
Reply. Any brilliants in this group....

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The Answer is CHIDAMBARAM