How can I limit the minimum and maximum quantity that users can order for any product?

You can create a category/collection with the name Rs 5 STORE, to create categories/collections refer the links below:

To create categories: https://help.storehippo.com/topic/categories

To create collections: https://help.storehippo.com/topic/collections

Once the category/collection is created, you can add the respective products to the category/collection, for more details refer https://help.storehippo.com/topic/products

To define the minimum and maximum quantity for users to purchase the product you can refer https://help.storehippo.com/topic/addedit-a-single-product

If the product has multiple variants, then to manage minimum and maximum quantity you can refer
https://help.storehippo.com/topic/options-and-variants

To manage the minimum and maximum order quantity for products in bulk you can refer
https://help.storehippo.com/topic/product-csv-file-format