I think I would use 'Nepal Fundraising Party'.

Nepal Fundraising Night - Sangria, Hog Roast & Party
Vivienne Lee
Sunday, 31 May 2015 at 19:30 - Monday, 1 June 2015 at 00:00 (BST)
Henley-on-Thames, United Kingdom

http://www.eventbrite.co.uk/e/nepal-fundraising-night-sangri...

Fundraising Party Ideas
Home Categories: Fundraisers
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Unique fundraising ideas can be the key in stirring up interest and enthusiasm for your organization’s needs. If you are looking to raise money for your club or charity, fundraiser parties are a great way to bring a large group of people together and spread your message about the project you are trying to accomplish. You can plan a great party that will be on everybody’s minds for months to come and keep the discussion going about your cause. Find inspiration from the following fundraising party ideas.

http://www.punchbowl.com/p/fundraising-party-ideas

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Note added at 44 mins (2015-06-12 09:15:25 GMT)
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http://dcblog.foundationcenter.org/2011/07/throwing-a-fundra...

6 tips for hosting a successful fundraising party

http://www.theglobeandmail.com/life/6-tips-for-hosting-a-suc...

How to Host a Fundraising Party
Whether you are looking to raise money for an individual project or for a great cause, with some prior preparation, you can host a great party that will raise both cash and awareness .Whether you're planning a small gathering of 20 people or a fully-fledged event with several hundred, here is a guide to assist you in your planning.

http://fundraisers-uk.co.uk/content/how-to-host-a-fundraisin...

Depending on the kind of event, you could replace 'party' with event, festival, evening, day, etc.