Magento 2: How to do Index Management

In Magento 2 there is no reindex button or separate reindex link to index the indices as of writing this article.
So, how can we reindex the data in Magento 2?

Well, Magento 2 comes with great CLI applications that helps us to run many tasks quickly via command line.

To reindex the indexes in Magento 2,
In command prompt navigate to the Magento 2 installation directory and then run below command.
php bin/magento indexer:reindex

If php CLI is not in your system path, one of below commands may invoke PHP CLI for you.

Windows users can run
PATH_TO_php.exe bin\magento indexer:reindex   in command prompt.