Bhagwan Singh is writer who has published more than a hundred articles and around twenty books on as diverse subjects as Linguistics, history, culture besides some novels and collection of articles. He is generally identified as author of Harappa Sabhyataa aur Vaidik Sahitya, The Vedic Harappans ,landmarks in ancient Indian history and his novel Apane Apane Ram, reinventing the Ramayan episode. His most ambitious project is Etymological Glossary of Indo-European terms tracing the rudiments down to primitive dialect that evolved into the link language of linguistically diverse components of the broad Harappan Society (Rigvedic Sanskrit as its literary manifestation and Sanskrit as its standardized form) that diffused through the trade network of Harappans, to give an illusion of Indo-European family.
समर्पणवादी बौद्धिकता का ऐसा उदाहरण विश्व इतिहास में ढूँढ़े नहीं मिलेगा। इसके दबाव में शिक्षित और बुद्धिजीवी वर्ग का बहुत बड़ा भाग ऐसा है जो नाम से हिंदू है परंतु अपने को हिंदू कहने में लज्जित अनुभव करता है। … भारतीय मुसलमान स्वयं मुसलमान बने रहते हुए हिन्दू प्रत्याशियों को ‘सेक्युलर’ होने का प्रमाणपत्र बाँटता या छीनता रहता है।
