6th may 2025 Current Affairs
Maize for Ethanol Production: Fuel vs Feed crisis Syllabus:Agriculture Context: India’s demand for maize-based ethanol has surged from 0.8 million tonnes in 2022–23 to 12.7 million tonnes in 2024–25, creating pressure on feed grain availability and triggering a food-versus-fuel debate. Maize for Ethanol – The Shift Biofuels help reduce dependence on fossil fuels and cut emissions Maize and sugarcane are the primary feedstocks One tonne of maize yields approximately 380 litres of ethanol India is the fifth-largest ethanol producer and aims for 20 percent blending by 2025 Emerging Challenges Grain Shortage: India has moved from a surplus to a deficit in maize supply Maize prices rose sharply from ₹15,000 to ₹25,000 per tonne Feed Crisis: Livestock feed supply is strained, especially for poultry and dairy sectors Feed industries are demanding genetically modified maize imports for ethanol use Soybean Market Disruption: Distillers’ Dried Grains with Soluble (DDGS), a byproduct of ethanol, competes with soybean de-oiled cake Soybean prices have dropped below the Minimum Support Price, affecting farmer incomes Global Lessons Mandates under the U.S. Renewable Fuel Standard and European policies have previously caused food price spikes and trade disruptions during global crises Way Forward – A Balanced Approach Implement flexible ethanol blending targets that can be adjusted during periods of food inflation Promote second- and third-generation biofuels from agricultural waste, used cooking oil, and biomass Allow duty-free imports of genetically modified maize exclusively for ethanol, with safeguards Ensure feed security through buffer stocks and support for alternative proteins Protect farmer interests by enforcing MSPs and supporting crop diversification and direct income transfers Conclusion: India’s clean energy goals through ethanol must be carefully aligned with national food and feed security. A research-driven, flexible policy focused on advanced biofuels is essential for sustainable agricultural and energy development. Consider the following statements regarding the use of maize for ethanol production in India: One tonne of maize yields less ethanol than sugarcane on average. The DDGS byproduct from ethanol production is a complete substitute for maize in animal feed. India became a net importer of maize after ethanol blending targets were raised. Ethanol production from maize does not affect soybean markets directly. Which of the above statements is/are correct? 1 and 3 onlyB. 2 and 4 onlyC. 3 onlyD. 1, 2 and 4 only Answer:CExplanation: Statement 1 is incorrect: One tonne of maize yields around 380 litres of ethanol, but sugarcane ethanol yield is not directly comparable due to differences in processing and sucrose content. Statement 2 is incorrect: DDGS is a partial, not full, substitute for maize feed. Statement 3 is correct: Maize diversion to ethanol led India to become a net importer. Statement 4 is incorrect: DDGS has undercut soy DOC prices, directly impacting soybean markets Vikramaditya I of Badami Chalukyas Syllabus:History Context: A 7th-century inscription in Old Kannada, dating to the reign of Vikramaditya I of the Badami Chalukyas, was recently discovered near Madapura Lake in Davangere, Karnataka.The inscription offers valuable insights into the fiscal system, land grants, and local governance structures during his rule. Badami Chalukyas: A Historical Overview Origins and Legitimacy: Emerged as a native Kannada power in the Deccan Claimed descent from Ayodhya to enhance dynastic legitimacy Capital:Vatapi (modern-day Badami) in Karnataka Key Rulers and Political History: Pulakesin I (543–566 CE): Founded the dynasty Fortified Vatapi as the capital Pulakesin II (609–642 CE): Most celebrated ruler Defeated Harshavardhana at the Narmada Established diplomatic ties with Sassanid Persia, depicted in Ajanta murals Vikramaditya I (644–681 CE): Son of Pulakesin II Reclaimed Vatapi from the Pallavas after his father’s defeat Consolidated control over southern kingdoms including Cholas, Pandyas, and Keralas Administrative and Military Contributions Political Reorganisation: Restored centralized authority after a period of decline Appointed trusted feudatories (e.g., Singhavenna) to govern regions (as revealed by recent inscription) Military Successes: Defeated Narasimhavarman I of the Pallavas Reunified the Chalukya empire Strengthened maritime capability—Pulakesin II reportedly maintained a fleet of 100 ships Fiscal Policies: Revenue relied more on military expansion than intensive agriculture Land grants and taxation formed key components of governance Religion and Culture Religious Patronage: Supported Shaivism, Vaishnavism, Shaktism, and Jainism Donations made to Jain institutions Pulakesin I performed Ashvamedha Yajna, asserting imperial authority Art and Architecture: Pioneered the Vesara style, blending Nagara and Dravida elements Built notable rock-cut and structural temples at Aihole, Badami, and Pattadakal Set the architectural foundation later expanded under Vikramaditya II and Kirtivarman Legacy of Vikramaditya I Regarded as “Rajamalla” and “Yuddhamalla” (Warrior among Kings) His reign marked a revival of Chalukya dominance after internal strife and external invasions Laid the groundwork for the cultural and architectural flourishing of the later Chalukyas With reference to the Badami Chalukyas, consider the following statements: Pulakesin II sent diplomatic envoys to the Roman Empire, which is depicted in the murals of Ellora caves. Vikramaditya I successfully defeated Narasimhavarman I and recaptured Vatapi. The Chalukyas primarily followed Shaivism and discouraged Jain patronage. The Vesara style of temple architecture emerged during the Badami Chalukya period. Which of the above statements is/are correct?A. 1 and 2 onlyB. 2 and 4 onlyC. 1, 2 and 3 onlyD. 2, 3 and 4 only Answer:BExplanation: Statement 1 is incorrect – The Chalukyas sent envoys to Persia (Sassanid Empire), not Rome, and it is depicted in Ajanta, not Ellora. Statement 2 is correct – Vikramaditya I defeated Narasimhavarman I and reclaimed Vatapi. Statement 3 is incorrect – They patronized multiple religions, including Jainism. Statement 4 is correct – Vesara style originated under the Badami Chalukyas. Unique Identification Authority of India Syllabus:Polity Context: The Unique Identification Authority of India (UIDAI), in collaboration with the National Informatics Centre (NIC) and National Testing Agency (NTA), conducted a successful Proof of Concept (PoC) for face authentication using Aadhaar during NEET-UG 2025. The initiative aims to enhance examination security and eliminate impersonation. What is Aadhaar-Based Face Authentication? A biometric verification process that uses facial recognition linked to an individual’s Aadhaar profile for real-time authentication. Piloted during NEET-UG 2025 at select centres in Delhi.