Do they happen to look like butterfly or moth eggs? There are a wide variety of appearances for them. They're not always clustered, either. Those white butterflies we have just deposit a single egg at a time and fly off. Those eggs look a lot like this: https://entomologytoday.org/imported-cabbageworm-egg/
– BrōtsyorfuzthrāxOct 14 '19 at 21:57
How do you remove these then? By brushing them off? I have added closeups
– AkshOct 16 '19 at 07:55