Is it necessary to transact through an intermediary?

It is advisable to conduct transactions through an intermediary. For example
you need to transact through a trading member of a stock exchange if you
intend to buy or sell any security on stock exchanges. You need to maintain
an account with a depository if you intend to hold securities in demat form.
You need to deposit money with a banker to an issue if you are subscribing
to public issues. You get guidance if you are transacting through an
intermedia ry. Chose a SEBI registered intermediary, as he is accountable for
its activities. The list of registered intermediaries is available with
exchanges, industry associations etc.