So basic search of How to index my journal is resolved under the following heads:

1. Register on the Indexing portal with a valid email id of the editor.
2. The indexing portal asks following set of details like:

Editor information

Publisher details

Number of volume/issues in a year

Publication medium Online, Offline

Special issue / Conferences Details

Indexing on other portal Links

A reviewer list as per their expertise

3. After submission of basic details indexing portal may send you some trailing emails for more cross information of journal-like Paper format, Copyright form, Publication certificates, Paid/Free condition of publication, etc.
4. Each trailing email should be reverted very carefully by the editor as at any stage indexing portal may reject or hold your indexing on the journal.
5. Once any of the indexing portals accept indexing of a site they may ask the journal to list their name on journal portal and provide a digital certificate as well.

Indexing sites of journals are independent bodies they can list any journal and remove any journal without any prior information so its a request to journals that always follow rules or policies of good indexing platforms and maintain journal indexing. I suggest editors to always select indexing sites that can list journals and its papers as well so that they can also get popular among other researchers ultimately increasing the citation count of papers and journals.

The selection of an Indexing site for an international journal depends on journal content. So before submission of the journal to any of the indexing portals international journal should list the following set of parameters:

1. Editorial Board Member profiles
2. Publisher Details
3. Previous publication
4. Website important links like author guidelines, the review process, submission process, etc.
5. The reviewer list also plays an important role.
6. Indexing of journals on other sites
7. Paper publication format/style, reference format.
8. Publication language

All above information is cross-checked by the indexing site. As most of the points are basic and improved immediately by the publisher but arrangement of reviewer team and good publication is a time taken to process, I suggest that good indexing platforms do not accept new journals having life of less than 3 years this period is enough to publish only good papers with knowledge full reviewers. It was suggested for the editor to do communication by email with authors as any of data requirement is always trace by the emails.