Question

What was Tamrapatra?
A) The bark of the trees on which ancient book was written
B) Text is written on plates of copper
C) Inscriptions engraved on paper
D) Inscriptions engraved on stone

Answer 1

Hint:
“Tamra” in Sanskrit means certain material, whose malleability is among the highest.
When needed to prove ownership / the claim to the rights, it was possibly necessary to generate them.

Complete step by step solution:
What?
The copper plate was an engraved or carved copper printing plate, a print made from such a plate, a tidy handwriting script centered on engraved models.
Indian copper plate inscriptions typically record land grants or lists of royal lineages bearing the royal seal, a profusion of which in South India has been found.
The copper plate, engraved in Sanskrit, offered details of the donation of a village to a Brahmin by the queen. The charter of the copper plates became bilingual from the sixth century A.D., i.e. both Sanskrit and Tamil were written.

Why?
Originally, inscriptions were written on palm leaves, but when the records were legal documents such as title-deeds, they were engraved on a cave or temple wall or, more generally, on copper plates that were then secreted in a safe place such as inside a temple's walls or base, or concealed in fields in stone caches.
Plates could be used more than once, as with a fresh inscription when a canceled grant was over-struck. Such documents have possibly been in existence since the first millennium.
In the newly settled lands, the retrievability of the copper plates was perhaps necessary. Detailed information is available from these copper plate grants on land tenures and taxes.

Note:
The earliest known copper-plate is a Maurya record that mentions famine relief efforts, known as the Sohgaura copper-plate. It is one of the very few inscriptions in India that are pre-Ashoka Brahmi.
One of the oldest recorded instances of copper plates being used for writing on the Indian subcontinent is the Taxila and the Kalawan copper-plate inscriptions (c. 1st century CE or earlier). The use of copper plate inscriptions evolved and remained the primary source of legal documents for many centuries.