CMWSSB Complaint Analytics
Chennai Metro Water · Complaint Intelligence
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Showing All depots 25 Feb 2025, 18:57 – 28 Aug 2026, 12:32
Use the Depot filter above to change scope
📈
Overall trend
44 complaints in this window
⚠️
Rising issue (last 30 days)
Sewer Main Block ▲ +3
Open backlog
0 open / escalated · 100% closed
📍
Fastest-recurring hotspot
Vellala Street · Sewer Main Block ×24 · 1.38/mo
44
Total Complaints
44
Closed · 100%
0
Open / Escalated
1
Streets Affected
18
Distinct Complainants
Reporting Period
25 Feb 2025, 18:57
28 Aug 2026, 12:32
Download report: 📄 Overview PDF 📄 Street×Category PDF 📄 Recurrence PDF ⬇ Street Frequency CSV ⬇ Full data CSV

Complaint Categories

CSV

Monthly Trend (with 3-month average)

Status

Complaint Mode

Top Streets

View all
StreetDepotComplaintsPeople
Vellala Street DEP 112 44 18

🛠 Sewer Complaints (main block · house block · overflow)

CSV PDF
StreetDepotSewerPeople
Vellala Street 112 32 14

🚰 Water Complaints (no supply · short supply · leaks)

CSV PDF
StreetDepotWaterPeople
Vellala Street 112 8 6

💧 Water Pollution (pollution complaints)

CSV PDF
StreetDepotPollut.People
No pollution complaints in this scope.

🔁 Recurrence — how often the same issue comes back (same category · same street)

PDF
CategoryStreetDepotTimesSpan (days)Avg gap (days)Per month
Sewer Main Block Vellala Street 112 24 521 22.7 1.38
Sewer - House Block Vellala Street 112 8 430 61.4 0.56
No Water Supply Vellala Street 112 7 272 45.3 0.77

Avg gap = average days between consecutive complaints of that type on that street. Lower gap / higher “per month” = a faster-recurring, unresolved problem.

🔬 Advanced Analysis

Pareto — the vital few (which categories drive most complaints)

Categories ordered by volume with their cumulative share. The highlighted rows are the smallest set that together account for ~80% of all complaints — fix these first.

CategoryCountShareCumulative
Sewer Main Block vital 24 54.5% 54.5%
Sewer - House Block vital 8 18.2% 72.7%
No Water Supply vital 7 15.9% 88.6%
Others 3 6.8% 95.5%
New Sewer Connection Renewal 1 2.3% 97.7%
Water Short Supply 1 2.3% 100%

When complaints arrive (weekday × time of day)

Load pattern across the week — darker cells are busier six-hour windows. Useful for staffing and planning proactive checks before the peak.

NightMorningAfternoonEveningTotal
Mon 6 2 1 9
Tue 5 3 1 9
Wed 2 1 3
Thu 3 3 1 7
Fri 1 4 1 6
Sat 2 3 5
Sun 2 3 5
Total 021185 44

Linked problems (category pairs that hit the same streets)

Pairs of issue types that recur together on the same street, ranked by the number of streets where both appear. Strong pairs point to a shared root cause worth fixing in one visit.

Problem AProblem BShared streets
Not enough overlapping complaints in this scope.