How to type the Indian Rupee Symbol?

Just press Alt R+4 like in below image:

See also this answer.

Note: You need to change your keyboard setting to English (India, with rupee sign) as default for this to work.

The other way is to use the following combination on any keyboard ctrl+shift+u then type 20b9 then spacebar This will add the rupee symbol.

IN ubuntu 14.04 LTS to get rupee sign (₹) follow the steps

1. click on symbol En
2. select text entry
3. click on + sign
4. double-click english(India ,with rupee sign)
5. close it
6. again click on symbol En
7. select english(India ,with rupee sign)
8. to type rupee sign press right Alt + 4