scrutiny : close examination
random scrutiny - in this extract the examination of financial evidence carried out without plan. The people doing this will select the accounts to be examined without choosing them from a list.
claim to have netted : fishermen use nets to catch fish. This phrase is saying the taxmen have caught Hasan Ali trying to avoid paying his full taxes.
Enforcement Directorate The department in the Indian Tax Office which deals with cases of tax evasion and enforces the legal requirements. They are hoping to establish Hasan Ali's wrongdoing on the basis of the accounts from the Swiss bank.
Student or Learner