What does the transmission of shares mean?
Transferring shares due to the shareholder's death to their legal heir(s) is called transmission of shares. It is a legal requirement, unlike the transfer of shares, which is voluntary. The shares are transmitted by forwarding necessary documents to the company.
On registration of the transmission of shares, the legal heir(s) entitled to the transmission of shares becomes the company's shareholder, is entitled to all the rights, and is subjected to all liabilities as a shareholder.
To learn what documents are required for the transmission of shares, see What is the process to claim shares and funds after the death of a Zerodha account holder?