penalty

Hi...............

1) can assessee be penalised for someday else's wrong Doing?

2) Can penalty be levied when part calim is allowed and part not allowed?

3) can penalty be levied if a particular loss is not allowed  by Assessing offficer?

4) Interest Expense not claimed in return but claimed at assessement  can penalty be levied?

Kindly  provide write ups  and case laws on above question

Regards

MSMS