how to secure articleship after CPT

After clearing CPT, we have to undergo articleship under a registered CA. previously ICAI themselves used to hold allotement programmes to allote students to different MITs. According to PCC FAQ document in the ICAI.org,

“44. How to find out an MIT / a Principal? Who are eligible to train articled assistants?
Vacancies for articled assistants are available with the Regional Offices and Branch Offices of the Institute.”

What does the above excerpts mean? In which section of ICAI’s website we have to contact or the procedure is quite different? Plz advise….

PS: What things should we look (suppose we get a list of vacancies) and priotise while selecting MITs?