Check the dates on which Tihar will be celebrated in Nepal.
Fundoo Times: Festivals: Diwali: Diwali in Nepal: When is Diwali Nepal in 2011

Tihar Nepal 2011

The festival Diwali, also known as Tihar, will be celebrated on 26th October in 2011 in Nepal.

Diwali is celebrated on 26th October and in 2011 Diwali will be celebrated on 4th Wednesday of October. Countries like Singapore, Sri Lanka and India also celebrate Diwali with great fervor and refer to it as Tihar in Nepal.Diwali is one of the most popular festivals in India and is also called Deepavali and Deva Diwali (by Jains).

In some other countries Tihar is also referred to as Deepavali.

Diwali dates 2011 around the world:

Deepavali India 2011
Deepavali Singapore 2011
Deepavali Sri Lanka 2011