I'm new to adobe illustrator and what I knew is if you create logo in illustrator it won't get pixeleted upon zooming. I have created the logo in illustrator and within the same project when I was zooming my logo it doesn't get pixeleted I was happy. Exported it as png 24 with transparent background(it's the best quality what is know). When I was using the same logo in a video(drag and drop), and when I zoom it , it gets pixeleted at edges. Which should not supposed to be. What I know is illustrator creates vector and not working with pixels, they don't gets pixeleted no Matter how much you enlarge it. Please help me to get the right knowledge regarding my doubts.
If you are using a PNG it's not vector.
Once you export to PNG you no longer reap the benefits of vector paths within Illustrator.
The PNG is a raster (pixel) image and zooming in on it will always make pixel edges more pronounced.
You might want to check here: What are the differences between vector graphics and raster graphics?
You drew a vector image in AI. Then you exported it as PNG which is a bitmap image format. The PNG file does not stand zooming in or scaling bigger without losing the guality - as you saw. If the file must be PNG it must be exported with as high pixel dimensions as needed for the wanted size, say 300 pixels per inch.
Exports as SVG, EMF and PDF are vector images except if one spoils it by rasterizing it at first or with bad export settings. Can you use other than PNG - that depends on your application which is unknown for us.