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Relevance: GS-III (Energy Security, Environment Conservation, Cropping Patterns) Source: Ministry of Petroleum and Natural Gas / Economic Survey, 2026

1 · What is the real story here?

Let us be honest: India is highly dependent on foreign oil. We import nearly 85% of our crude oil from abroad, mostly from West Asia. Whenever geopolitical tensions flare up, oil prices skyrocket, and our ordinary citizens feel the pinch of inflation.
To insulate our economy and achieve our clean energy goals, the government is aggressively pushing for a domestic, “Make in India” alternative: Compressed Biogas (CBG). While this clean fuel is a game-changer, it has accidentally created an unexpected problem for our farmers and food security!

2 · What is CBG and why is it important?

Biogas is naturally created when organic waste (like cow dung, agricultural stubble, and city garbage) decomposes without oxygen (anaerobic digestion). When we purify and compress this gas, it becomes CBG—a fuel that is chemically identical to standard CNG and can directly power vehicles and industries!

The Master Plan
Mandatory Blending
To guarantee a market for green gas, the government has introduced a mandatory blending obligation. City gas grids must mix 1% CBG by FY 2025-26, gradually scaling up to 5% by FY 2028-29.
Waste to Wealth
GOBARdhan & SATAT
Under the GOBARdhan scheme, villages get financial grants of up to ₹50 lakh to build cattle-waste biogas plants. The SATAT initiative specifically connects these rural gas plants to the main national pipeline grid.
The New Problem
The ‘Corn Mania’ Threat
Because biogas companies pay good money for crops like maize (corn) to make gas, many farmers are ditching essential food crops! They are growing corn instead of pulses and oilseeds, threatening domestic food prices.
The Smart Solution
The Denmark Model
India must learn from Denmark! They aim for 100% green gas by 2030, but strictly ban the use of human food crops as fuel. We must force companies to rely purely on animal dung and agricultural crop residue.

  • Bonus for Farmers: When organic waste is used to create biogas, the leftover residue transforms into high-quality organic fertilizer called Fermented Organic Manure (FOM). The government provides a ₹1,500/tonne subsidy to help sell this to farmers.
  • Tax Boost: To speed up adoption, the Union Budget 2026-27 completely exempted the CBG portion of blended fuel from central excise duty, preventing double taxation.

UPSC Prelims Quick Facts
CBG vs. CNG Compressed Biogas is chemically identical to standard Compressed Natural Gas (both are primarily methane) and can be used interchangeably in vehicle engines.
SATAT Scheme Sustainable Alternative Towards Affordable Transportation. Managed by MoPNG to encourage entrepreneurs to set up CBG production plants.
GOBARdhan Galvanizing Organic Bio-Agro Resources Dhan. A vital component of the Swachh Bharat Mission (Grameen) Phase II focused on rural waste management.
Economic Survey Warning The latest survey officially highlighted that maize cultivation is replacing critical protein crops like soybeans, peanuts, and pulses, raising our dependence on edible oil imports.
Blending Target Mandatory CBG blending starts at 1% in FY 2025-26 and scales up to 5% by FY 2028-29 for city gas networks.

MCQ Practice Question
Q. With reference to India’s Biogas initiatives and clean energy transition, consider the following statements:

  1. Compressed Biogas (CBG) is chemically distinct from standard Compressed Natural Gas (CNG) and requires completely different engine modifications for automotive use.
  2. The GOBARdhan initiative is implemented as an integral component of the Swachh Bharat Mission (Grameen) Phase II.
  3. The government has mandated a 5% Compressed Biogas blending obligation in city gas distribution networks starting from the financial year 2028-29.

Which of the statements given above is/are correct?
(a) 1 and 2 only    (b) 2 and 3 only    (c) 1 and 3 only    (d) 1, 2 and 3

Answer: (b) 2 and 3 only

  • Statement 1 — Incorrect (the trap): CBG is chemically identical to commercially available CNG—both are predominantly methane. It can directly replace CNG in cars and industrial boilers without needing any specialized engine modifications.
  • Statement 2 — Correct: The GOBARdhan scheme operates under the Swachh Bharat Mission (Grameen) Phase II to convert rural cattle dung and organic waste into wealth and energy.
  • Statement 3 — Correct: Under the phase-wise mandatory blending obligation approved by the government, the CBG blending target in CNG and PNG grids reaches 5% by FY 2028-29.
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