Hard and fast( বাঁধা ধরা ) There is no such hard and fast rule in this matter.
Kith and kin( নিকট আত্মীয় ) He has no good relationship with his kith and kin.
slap on the wrist( মৃদু শাস্তি ) Although he broke the rules, he was only given a slap on the wrist
Chip of the old block ( বাপকা বেটা ) He is a chip of the old black.
Steer clear of( এড়াইয়া চলা ) You must steer clear of evil company.
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.