Revised 25 October 2026 · v1.1.0 · what changed

SATAT (Sustainable Alternative Towards Affordable Transportation), launched on 1 October 2018, set out to build a nationwide compressed biogas industry: 5,000 plants converting agricultural residue, cattle dung and municipal waste into a fuel that could be blended into the CNG and piped-gas network. Implementation ran far behind that target for years — only 40 plants existed by the scheme's original 2023-24 deadline, 103 were operational by mid-2024, and India had commissioned 132 as of January 2026, producing roughly 920 tonnes a day; by 6 August 2026 the GOBARdhan portal counted 217 commissioned plants, 4.3% of the original plant-count target, seven years after launch. But the more current, more specific gap is a different one, and it is disclosed by the regulator itself: even the plants that exist mostly cannot get their gas to market the way the policy assumed they would.

Functional does not mean connected

PNGRB's "Connectivity and Performance Report of CBG: FY 2025-26" (August 2026), compiled from city gas distribution entities, counts 207 functional CBG plants: 24 already connected to a CGD network, 15 with connectivity in progress, 20 with proposals initiated and 148 not planned yet. PNGRB's Statistical Booklet of 30 September 2026 puts it the same way: "only 24 (11.6%)" of the 207 were connected to the pipeline network. Read plainly: of the 207 plants that are producing gas today, 24 — about 12% — can inject it directly into a city gas network by pipeline. Another 15 are building that connection and 20 have proposals. The remainder, 148 plants, have no connectivity plan at all. An earlier count, from PNGRB's Compressed Bio-Gas Division in what this piece first cited as its September 2026 Action Taken Report (a quote that could not be re-located on 25 October), had "around 130 functional CBG plants" with "connectivity of 17 CBG plants" achieved; PNGRB's October 2025 deck had likewise listed 17 connected, and its March 2026 status report 24.

A CBG plant without pipeline connectivity is not necessarily idle: it can bottle and truck compressed gas to CNG stations or industrial buyers, as most Indian CBG plants have done from the start, since the pipeline network was never built to meet them. But trucked CBG carries a materially higher logistics cost per unit than pipeline-injected gas, and it is exactly the constraint that a pipeline connection is meant to remove. The regulator identifying "proximity to CGD networks" and "technical feasibility" as things it still needs to map, seven years into the scheme and more than two years past the original plant-count deadline, is itself informative: the connectivity gap is not a rounding error being closed, it is a structural feature of how the scheme was built — plants first, pipes later, if at all.

The mandate that assumes the pipe exists

The Compressed Biogas Blending Obligation (CBO) requires CNG and piped-gas marketers to blend a rising minimum share of CBG into their supply: 1% in FY2025-26, 3% in FY2026-27, 4% in FY2027-28, and 5% from FY2028-29 onward. That obligation falls on the CGD entity doing the blending, not on the CBG plant doing the producing — which means the mandate's success depends on enough CBG actually reaching a CGD network's pipeline system to blend, not merely on enough CBG being produced somewhere in the country. A national obligation ramping toward 5% blending, layered onto a connectivity rate of roughly 12% (11.6%) of functional plants, is asking the demand side of the market to scale faster than the supply side's physical link to it.

The scale of the opportunity: measured against India's own legislature

One way to size how much headroom is actually left is to set the plant count against the units India already elects representatives for. Lok Sabha has 543 directly elected, single-member geographic constituencies; state Legislative Assemblies add a further 4,123 Assembly constituencies across the country, for 4,666 directly elected geographic seats in total. Layered on top, the Rajya Sabha's 245 members (233 elected by state and Union Territory legislatures, 12 nominated) represent states as a whole rather than single geographic constituencies, so they do not map onto individual plant sites the way Lok Sabha and Assembly seats do — but they bring the total count of sitting national and state legislators to 4,911. India is also divided into roughly 800 districts, a number that keeps rising as states carve out new ones.

India already runs a One District One Product (ODOP) scheme that anchors a flagship local product to each district's own administrative and political identity. The same logic has not been applied to CBG plant siting or, more importantly, to CBG-CGD connectivity funding: reaching even one commissioned plant per district would require roughly four times the current count of 217, and reaching one pipeline-connected plant per district would require roughly thirty-three times the current count of 24. Framing the connectivity backlog against a unit every district, MP and MLA already recognises — rather than against an abstract national target — is one way to convert a diffuse infrastructure gap into something each constituency's own representative has a concrete, locally visible reason to push for.

What would fix this

• Sequence connectivity funding ahead of new plant approvals, not behind them. A CBG plant sanctioned without an assessed, funded pipeline route to the nearest CGD network is being set up to rely on trucking indefinitely; PNGRB's own "proximity and feasibility" mapping exercise could become a pre-sanction gate rather than a post-hoc audit.
• Publish the CBO's actual blend achieved against the mandated ramp, by CGD entity. A 1%-this-year, 5%-eventually mandate is only checkable if there is a public number for what share entities are actually managing to blend; the ATR does not publish one.
• Report the 15 "in progress" connectivity projects' expected completion dates. Naming a date lets a reader distinguish a genuinely near-term fix from an open-ended one.
• Give the 148 functional plants with no connectivity plan a public reason. Some are likely too far from any CGD network to justify a dedicated line; some may simply not have been assessed yet. Those are different problems with different fixes, and the ATR does not distinguish between them.
• Publish district- and constituency-level CBG connectivity data, the way ODOP publishes a product per district. A public map of which districts, Lok Sabha and Assembly constituencies have a commissioned or pipeline-connected CBG plant — and which have neither — would let each constituency's own MP or MLA see, and be seen to act on, a concrete local gap rather than a national percentage.

These are proposals from this blog, not recommendations any agency has adopted.

What this piece does and doesn't cover

• The 5,000-plant original target and the 40/103/132 commissioning figures are as reported in trade and policy-review coverage (Energetica India, PRS India's implementation review), not independently re-derived from a single MoPNG dataset; the 132/920 TPD figure is a January 2026 snapshot, since overtaken by PIB's 6 August 2026 backgrounder (217 commissioned, 339 under construction; 0.4 MMSCMD), and the 920 TPD output was not re-verified.
• This piece does not model the CBO blending mandate's cost impact on CGD entities or consumers — only its physical feasibility given the current connectivity rate.
• The financing side of CBG plant economics (subsidies, loan guarantees, viability-gap funding) is covered separately — see the companion piece linked below — and is not re-covered here.
• The district/constituency count comparison is this blog's own arithmetic, not an official allocation target. No government document proposes siting CBG plants one-per-district or one-per-constituency; the comparison is offered as a way to size the gap against units readers already recognise, not as a claim about what an efficient siting plan would look like.
• The 4,123-MLA figure is a secondary-sourced aggregate across 28 states' and 3 Union Territories' Legislative Assemblies, not independently re-summed seat-by-seat for this piece; the 543 Lok Sabha and 245 Rajya Sabha figures are current, undisputed constitutional totals. A Delimitation Bill that would have raised Lok Sabha strength to 850 seats failed to pass in April 2026 and was withdrawn, so 543 remains the operative figure.

Corrected 25 October 2026. The headline count of pipeline-connected plants is updated from 17 of 132 to 24 of 207 functional plants (11.6%), with 148 having no connectivity plan, per PNGRB’s FY 2025-26 connectivity report (August 2026) and Statistical Booklet (30 September 2026); the earlier 17 matches PNGRB's October 2025 snapshot. Commissioned plants are 217 and under construction 339 per PIB’s GOBARdhan backgrounder (6 August 2026), replacing the older 174 and 425 pipeline counts. The ratios in the comparison table are recalculated.

Sources: PNGRB, Connectivity and Performance Report of CBG: FY 2025-26 (August 2026) — primary source for the 24-connected/15-in-progress/20-proposed/148-not-planned of 207 functional plants and the CBO schedule; PNGRB Statistical Booklet (30 September 2026) (24, 11.6%); PIB backgrounder on the GOBARdhan scheme (6 August 2026) (1,908 registered, 217 commissioned, 339 under construction); earlier PNGRB snapshots of October 2025 (17 connected) and March 2026 (24 connected); and PNGRB's Action Taken Report on the Annual Plan 2025-26 for the earlier 17-of-~130 count, quoted as first published here and not re-located. SATAT plant-commissioning history and the 132-plant/920-TPD figure per Energetica India Magazine ("India Commissions 132 CBG Plants Under SATAT, Output Hits 920 Tonnes Per Day," January 2026 data) and PRS India's "Review of Implementation of CBG (SATAT)." CBO blending-obligation ramp (1%/3%/4%/5%) per multiple industry-scheme summaries cross-checked against each other; not independently verified against the primary notification for this piece. Lok Sabha (543) and Rajya Sabha (245, of which 233 elected and 12 nominated) figures per the Election Commission of India's and Parliament's own published totals; the failed Delimitation Bill 2026 (which would have raised Lok Sabha to 850 seats before being withdrawn after failing its Lok Sabha vote on 17 April 2026) per PRS India's bill-tracking page. Total MLA count (4,123) per secondary aggregation of state Legislative Assembly seat counts, cross-checked across two independent compilations. District count (~800) per current district-list compilations, which the source material itself flags as a moving number as states continue to create new districts.

About this article: Researched, written and edited by Umashankar Triplicane Dwarakanathan, with AI research assistance; every figure is meant to trace to the primary source cited. See the Editorial Policy for how sourcing, AI use and corrections work.