S. 69 :Unexplained investments-Cash Credits-unexplained advances-Cash and stock discrepancies-Survey-Retraction-Senior Citizen-Retraction is valid-Shortage of stock-Gross profit rate of 8.02 Per Cent-Statement recorded under Section 131 has no evidentiary value in absence of corroborative evidence-Assessment of disclosed income is invalid-Diary found during survey-Entries giving names and amounts without other details-No inquiry made to establish genuineness of transactions-Addition is not justified-Excess cash found during survey-Addition is affirmed. [S.131, 133A]