Converting a doba (small pond), pukur (tank), or any other water body into bastu (homestead) or commercial land in West Bengal is heavily restricted. Under strict environmental mandates, the framework has evolved significantly.

The Government of West Bengal has instituted a strict, uniform, time-bound Standard Operating Procedure (SOP) that explicitly governs how these applications are handled, mandating dual-department clearances and strict enforcement of compensatory water body laws.

The legal process, statutory compliance, and critical case laws have been updated to reflect the regulatory landscape of 2026.

Conversion of Water Body Process in West Bengal

1. The Statutory Framework

The conversion of any water body is governed by three primary legislations in West Bengal. These laws work in tandem to ensure that no water body is filled up without rigorous legal scrutiny.

A. Section 4C of the West Bengal Land Reforms (WBLR) Act, 1955

Any raiyat (landholder) intending to alter the mode of use or classification of land must apply to the Collector (represented by the DL&LRO/BL&LRO) under Section 4C. Unauthorised conversion or changing the character of a water body without prior permission is a cognizable and non-bailable offence under Section 4D, punishable with imprisonment up to three years, a fine, or both.

B. Section 17A of the West Bengal Inland Fisheries Act, 1984

This is the most critical hurdle for water body conversions. Under Section 17A, there is an absolute embargo on filling up, dividing, or altering any water area measuring 5 cottahs (0.035 hectares) or more that is capable of being used for fishery or retains water for at least six months a year.

If a water body is filled up illegally, the Competent Authority has the explicit power under Section 17A(2) and 17A(10) to:

• Take over the management and control of the water body.
• Issue a written notice forcing the owner to restore the water body to its original condition at their own expense.

C. The West Bengal Municipal Act, 1993 / KMC Act, 1980

Municipal authorities and corporations (like the KMC) are prohibited from sanctioning any building plans over plots classified as water bodies (pukur, doba, jhallar, etc.) unless a formal conversion order from the Land Reforms Department and an NOC from the Fisheries Department are produced.

2. Standard Operating Procedure (SOP) for Conversion

The West Bengal Government has formalised a strict, 120-day time-bound SOP for processing conversion applications involving water bodies under the proviso to Section 4C(2) of the WBLR Act read with Rule 5A of the WBLR Rules.

The process requires the unconditional creation of a Compensatory Water Body of equal or larger size.

[Step 1: Application Submission (Form 1A + Affidavit)]
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[Step 2: Joint Field Enquiry by BL&LRO (Within 15 Days)]
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[Step 3: Verification & Referral to Environment Dept by DL&LRO (15 Days)]
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[Step 4: Feasibility & Clearance by Environment Dept (15 Days)]
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[Step 5: DL&LRO Hearing & Order to Create Compensatory Water Body (15 Days)]
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[Step 6: Mandated 90-Day Window for Applicant to Dig/Create New Water Body]
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[Step 7: Physical Field Verification by BL&LRO (15 Days)]
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[Step 8: Final Inspection & NOC by Fisheries Department (15 Days)]
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[Step 9: Final Order by DL&LRO & Updating Record of Rights (RoR)]

Crucial RoR Note: Once approved, the BL&LRO updates the Record of Rights (RoR). The newly created compensatory water body is recorded with the permanent restriction: “Vide Section 4C(2) of the WBLR Act, no further conversion will be allowed.”

3. Groundbreaking Judicial Precedents & Case Laws

The Calcutta High Court and the National Green Tribunal (NGT) have heavily penalised illegal water-body filling while streamlining the boundaries of administrative power.

A. Anuradha Sen v. Kolkata Municipal Corporation (2024 SCC OnLine Cal 185)

• The Ruling: The Division Bench of the Calcutta High Court ruled that while the state has extensive powers to restore water bodies, the competent authority must strictly establish evidentiary proof that the land meets the criteria under Section 17A of the Inland Fisheries Act, 1984.
• Key Takeaway: Action cannot be taken arbitrarily based on visual assumptions or local complaints. The authorities must issue proper notice, allow a hearing, and provide a categorical finding that the land is/was a water area capable of being used as a fishery before ordering heavy-handed restoration or eviction.

B. Siteswar Pramanik v. The State of West Bengal & Ors. (W.P. 16140(W) of 2008)

• The Ruling: This foundational case established that the WBLR Act, Municipal Acts, and Inland Fisheries Act must be read together. A municipal authority cannot unilaterally issue a building sanction plan on a water body.
• Key Takeaway: Even if an owner fills up a doba illegally and secures a municipal building plan, the construction remains illegal if Section 4C (WBLR) conversion permission was bypassed.

C. Bajranglal Sarda & Ors. v. State of West Bengal & Ors. (W.P. No. 9383(W) of 2008)

• The Ruling: The High Court analyzed the phrase “for any other purpose” under Section 17A(1)(b) of the Fisheries Act. The Court held that the primary intent of the law is ecological conservation and the prevention of environmental degradation.
• Key Takeaway: Even if a water body is small or temporarily dry, if it has the physical capacity to retain water and sustain pisciculture, it cannot be converted to solid land for construction without executing the compensatory water body protocols.

D. National Green Tribunal Directives (Sarbasukha Mouza Case)

• The Ruling: The NGT heavily penalized instances where local administrative bodies or District Magistrates delayed action against illegal earth-filling of dobas. The Tribunal reiterated that under the public trust doctrine, the state is obligated to remove encroachments on water bodies within a strict 3-month window.
• Key Takeaway: Administrative inertia is no defense. If a doba or pukur is illegally filled for residential/commercial projects, the NGT mandates immediate demolition of the built structures and ecological restoration at the cost of the wrongdoer.

4. Format of Application for Land Conversion

(To be printed on legal paper, affixed with a Court fee of Rs. 10/-, and submitted to the DL&LRO via the online portal and physical submission).

To,
The District Land and Land Reforms Officer,
[Insert Name of the District]
Government of West Bengal

Sub: Prayer for change, conversion, or alteration of land classification with provision for a Compensatory Water Body under Section 4C of the WBLR Act, 1955.

Dear Sir/Madam,

I/We, the undersigned, am/are the recorded raiyat(s) of the land scheduled below. I/We intend to convert the recorded classification of the target plot from [e.g., Doba / Pukur / Danga] to [e.g., Bastu / Commercial] for the purpose of [Insert Project Description, e.g., Housing Complex / MSME Industrial Unit].

In accordance with the Proviso to Section 4C(2) of the WBLR Act, 1955, I/we hereby undertake to create a Compensatory Water Body of equal/larger size on the land scheduled under Part B of this application.

SCHEDULE OF TARGET LAND (PART A)
a) Name of Mouza: ___________________________
b) J.L. No.: _________________________________
c) Khatian No. (R.S. & L.R.): _________________
d) Plot No. (R.S. & L.R.): ___________________
e) Recorded Classification: ___________________
f) Total Area of Land: _______________________
g) Police Station & District: _________________

SCHEDULE OF COMPENSATORY LAND (PART B)
a) Name of Mouza: ___________________________
b) Khatian & Plot No. (L.R.): ________________
c) Recorded Classification & Area: ___________
d) Distance from Target Land: ________________

ENCLOSURES (Submit in 5 Sets):
1. Statutory Affidavit/Declaration promising the creation of the Compensatory Water Body within 90 days.
2. Certified Copy of Mutation Certificate & Current Record-of-Rights (L.R. Porcha).
3. Land Revenue Payment Receipt (Khajna Receipt up-to-date).
4. Detailed Site Plan and Engineering Layout in duplicate highlighting both plots.
5. Project Report vetted by the Competent Authority (DIC / Industry Department, if commercial).
6. Copy of the Pollution Control Board (WBPCB) clearance / Environment Department Clearance application layout.

UNDERTAKING:
I/We further undertake that I/we will have no claim over the said land if in future the land is found to be vested in the State under any legal proceeding. I/We declare that the target land is free from all encumbrances, is in my/our absolute physical possession, and is not cultivated by any Bargadar.

Date: ______________
Place: _____________

Yours faithfully,

_______________________
[Signature of the Applicant(s)]

5. Critical Takeaways for Property Owners & Investors

• Never Buy “Filled” Land Blindly: Always verify the original mother-deeds and the 1955/R.S. Record of Rights. If a plot is physically solid but recorded as a doba or pukur, it is legally a water body. Any construction on it without an official DL&LRO conversion order is a criminal offence.
• The Proximity Rule for Compensation: The compensatory land where you intend to dig the new water body must ideally be located within the same Mouza or immediate local catchment area to ensure ecological balance.
• Strict Criminal Liability: Under Section 4D of the WBLR Act, regularizing a water body post-filling is not a matter of paying a minor penalty fee; it involves active criminal prosecution.

However, to apply in the given format you need help from a reputed property lawyer in West Bengal. At Advocate Chenoy Ceil, you will receive the correct guidance for conversion of water body or pukur into bastu land. For more details, contact here.