Can I purchase Multiple "Single App" Plan through my ID

Do the math. You can take any number of individual plans as long as they are different products. You can also take one plan on an annual plan, a different on a month to month. Just look at the different prices, because some plans are cheaper than others.

And the cheapest is probably the Photiographer’s plan. So if you need Photoshop, take that one, as it will be more economical as Phostoshop single app.

For example,If I just want to purchase just 2-3 Applications(Adobe Photoshop,InDesign, XD).

Photography Plan+InDesign+XD = US$41/month

I am low on budget to Purchase All Creative Cloud App Plan.

All Apps Plan = US$53/month

Your 3 individual plans will be US$12/month cheaper. If you add just one more app then All Apps will be better value for you.

yes, you can but the all apps price is about the same as the photog plan, id and xd.