Tax on Treasury Bills

Thank you for the clarification.

There have been a couple of threads in the past that covered this topic - [1] [2].
But, they ended without any references to first-hand information.
(eg. relevant section of the IT-act or circular/notification).

Knowing this for certain could help simplify ITR-filing for some.
(eg. folks with no other capital-gain income can stick to ITR-1).

While everyone agrees that the rate of tax on T-Bills, is as per one’s tax-slab,
the opinion is split on which of these 2 sections in the ITR (Schedule OS/CG) should one report the income.

@harshareddy do you have any first-hand references for this?
(eg. relevant section of the IT-act or circular/notification).
or is this based on opinions of experts CAs and what you have observed in-practice?
(just curious if we can put this topic to rest with an official confirmation)