SC says secrecy of vote a must in any election

Context: Case hearing related to Use of violence to snatch the voters slips and to cast bogus voting in an election in Bihar in 1989

Supreme Court observations

In any election, be it to Parliament or State legislature, the maintenance of secrecy of voting is “a must” to ensure that a voter casts his vote without any fear or being victimised if his vote is disclosed
Democracy and free elections were a part of the Basic Structure of the Constitution
Secrecy is a part of the fundamental right of freedom of expression.
The confidentiality of choice strengthened democracy