If India hosts Bangladesh for their first day-night Test at Eden Gardens in Kolkata on November 22, the biggest concern for BCCI will be to arrange quality pink balls that will work in Indian conditions. The board is unsure about the quality of SG balls. In this scenario, importing pink balls - Dukes or Kookaburra - is an option. It will need a decent 'library' of balls.

from Times of India https://timesofindia.indiatimes.com/sports/cricket/bangladesh-in-india/d/n-test-quality-supply-of-pink-balls-a-big-concern-for-bcci/articleshow/71799277.cms