Summary: The book "Between the Lines" by Kuldip Nayar covers various topics and incidents like the succession within the Congress party, bilingualism in India, Indo-USSR relations, and China’s invasion of India. The narrative sheds light on significant events such as the nomination of Lal Bahadur Shastri as Congress President, the language debate in a committee discussing the adoption of Hindi, and the political dynamics during the Sino-Indian conflict. It offers insights into the decision-making process, political maneuvering, and international relations during critical moments in India’s history. The text also touches upon diplomatic issues, military strategies, and the role of key political figures like Nehru, Shastri, and Kamaraj in shaping India’s response to internal and external challenges. Along with providing details of key events, the book offers perspective on the complex relationships between language, politics, and global diplomacy, giving readers a nuanced understanding of India's historical context and challenges during the mid-20th century.