Question: Who is considered the chief architect of the document that Hindu groups lobbied to add a cow slaughter ban to in 1966?
Sentence (from "1966 anti-cow slaughter agitation"): The agitation culminated in a massive demonstration outside Sansad Bhavan in New Delhi on 7 November 1966 (as per Hindu Panchang, Vikram Samvat, Kartik Shukla Ashtami, famously known as Gopashtami among Hindus).
Relevant evidence: No