Losar missing in Ladākh and Sikkim

### Affected country

Ladākh and Sikkim

### Affected public holiday

Losar

### Source of the information

https://en.wikipedia.org/wiki/Public_holidays_in_India#Buddhist_holidays

### More information

Please consider adding support for the [Tibetan calendar](https://en.wikipedia.org/wiki/Tibetan_calendar), as this would make the implantation of this holiday way easier.