Hello

https://publicholidays.com.bd/bn/bengali-new-year/

https://publicholidays.com.bd/bn/2021-dates/

https://www.holsdb.com/ben/public-holidays/bd?y=next

https://www.holsdb.com/ben/public-holidays/bd?y=next

https://www.kalerkantho.com/online/national/2020/10/25/969157

http://www.dainikshiksha.com/২০২১-খ্রিষ্টাব্দের-সরকারি-ছুটির-তালিকা-চূড়ান্ত/198107/