Hello Niraj,

The IDD which SBI Clerk Recruitment notification mentions is an abbreviation which stands for integrated dual degree and it is not the name of any institute. These days many colleges offer Integrated courses and the criteria mentioned in the notification: "Candidates having integrated dual degree (IDD) certificate should ensure that the date of passing the IDD is on or before 31.08.2019" is meant for applicants who are or have studied Integrated courses instead of traditional graduation courses.

Hope this answers your query, feel free to ask for more info.