What is the 1991 K. Veeraswami judgment all about?

Why did Vice President Jagdeep Dhankar call for a revisit of the 1991 judgment? Who is K. Veeraswami? How did his case reach the Supreme Court? What did the Supreme Court rule in that judgment?

What is the 1991 K. Veeraswami judgment all about?
Why did Vice President Jagdeep Dhankar call for a revisit of the 1991 judgment? Who is K. Veeraswami? How did his case reach the Supreme Court? What did the Supreme Court rule in that judgment?