The document discusses the merger between Vodafone India and Idea Cellular to form Vodafone Idea Limited in 2018. It was a horizontal merger between the two largest telecom operators in India. The merger aimed to improve infrastructure, offer more competitive tariffs, and better position the company for 5G technology against competitors like Reliance Jio. Significant cost synergies were expected from network sharing and optimization that could reduce debt levels and increase profits for the combined entity. The valuation used an enterprise value of Rs. 82,800 crore for Vodafone and Rs. 72,200 crore for Idea, accounting for their spectrum holdings, customer bases and debt levels.