Twitter Trend Topic

Hello,

How do I make the trend topic on Twitter? What are the necessary conditions?
I've got 1k users in the API.

with this service you can make your tweets or a hashtag trending if it is good enough http://www.blackhatworld.com/blackhat-seo/social-media/690732-instant-retweets-service-make-your-twitter-go-viral-best-twitter-service-bhw.html