Tools you will need:
Tweepi.com (Free version is enough)
With Tweepi, you can easily manage your twitter account like following new users, flush the unfollowers, follow someone else’s followers etc. You have to create your account at Tweepi which is related to your main twitter account. Here is how to take advantage of this free tool to get hundreds of followers daily:
Step 1: Login to your main Twitter account, go to twitter search and enter the keyword or niche that you are targeting. As you hit enter, you will come up with many big names in the industry. Our aim here is to follow THEIR followers, so choose any user which has huge amount of followers, say more than 1000 followers. Copy the complete username @example.
Step 2: Go to Tweepi and click on the dashboard. Choose the first option i.e. Follow Followers. Paste the twitter username @example that you copied in the first step and click Search. Tweepi will show you a list of all of the followers of that user. The good thing here is you can sort the list with different options like Location, Last Tweeted, Followers Count, Follow Ratio. I sort this list by Last Tweeted and this way I get the most active people on the top of the list. Now you can follow them quickly by clicking the follow button located near their profile picture. I only follow active people who have tweeted at least in the past 24 hours and have more than 500 followers count. This way you can follow hundreds of people very quickly and easily.
Step 3: Wait and see the magic, the peoples you follow will most likely follow you back. Say for example if you follow 100 people, you may get 70 users following you back, and others might also discover you and follow you.
Tweepi will tell you who is not following you back. I usually flush the unfollowers every two or three days. This way I can keep my account clean and highly targeted to my niche.
Hope this was helpful.