Gala Day ( উৎসবের দিন ) The 15th August is a gala day to the Indians.
At sixes and sevens ( বিশৃঙ্খলা অবস্থায় ) All the furniture in the room were at sixes and sevens.
A blessing in disguise ( বিপরীতে হিত ; প্রথমে খারাপ হিসেবে মনে হলেও পরবর্তীতে ভালো হয় ) Sam's motorcycle accident was a blessing in disguise because he got enough insurance money.
As it were ( যেন ) The sun is, as it were , the lamp of the universe.
under the weather ( ভাল না ; অসুস্থ ) I've been feeling under the weather