Hi Prateek.

Thanks for your question. I have updated the example repository on github see thehttps://github.com/AndrejsAbrickis/bye-bye-bower/pull/1 which contains the changes. It should be clear from it how to implement a grunt task.

In few words:

1. I've installed grunt-contrib-copy plugin which handles file copying
2. I've added a grunt copy task see the following code block

copy: {
  main: {
    files: Assets.map((asset) => {
      return {
        src: `./node_modules/${asset}`,
        dest: `public_assets/3rd-party-assets-grunt/${asset}`
      }
    })
  },
},

I hope this helped you.

Cheers!