Hi Aspirant,

Please mention the name of App which you are talking about for your postgraduate course. And since you have not mentioned the name of the App, I  am really sorry to inform you that I can't give you any suggestions or information regarding your PG course. However you can learn more about your interested PG course by referring the link below,

https://www.careers360.com/courses/pgd-postgraduate-diploma

Hope this helps.

Feel free to ask any more doubts regarding this.

All the best!!!