Depository Vs Custodian

is that the only difference? why should a IB have depositary and a custodiian?

please send me indepth knowledge of depository and cusodians

what is the differnce between depository and ccustodian

what is the difference between dipository and custodian?

what is the difference between dipository and custodian?

Depository" is generally (or historically) used to talk about central institutions (nearly utilities) that register the initial deposit of securities on request of the issuer. CSDs are most of the time local organisations built to accomodate the clearing and settlement needs of local traditional exchanges. 
- "Custodian" describes a firm (generally banks) that holds securtities on behalf of trading firms.