/home/root/www/pub/static/frontend/Developer/shop/en_US/css/‌​mycss.css

It's already set, catalog price scope on website only. If I do manually from catalog admin products, the prices are changing properly for the relevant stores, if import through csv then it's not importing properly, it's imported the same prices for all the store views

Thanks for your comment @JeevaChezhiyan i followed the same format but for the price it's not updating

Anyone, Please give a solution to this

I checked with core file, after adding the custom collection, the disabled product is coming but grid filter is not working.

@SUBINCHANDRAN you need to create a block else it won't come, In that block you can give condition, what product should come in product collections