In a bank account, credit to the account is given only when a ‘pay in’ slip is submitted together with cash/cheque. Similarly, in a depository account ‘Receipt in’ form has to be submitted to receive securities in the account. However, for the convenience of BOs, facility of ‘standing instruction’ is given. If you say ‘Yes’ for standing instruction, you need not submit ‘Receipt In’ slip every time you buy securities. If you are particular that securities can be credited to your account only with your consent, then do not say ‘yes’ [or tick ] to standing instruction in the application form.