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New · Tamil + English AI tutor
அம்மாவின் கனவு. உங்கள் சாதனை.

Crack TNPSC.
One mock at a time.

SadhanAI is a personal exam coach for Group I, II, and IV aspirants — adaptive mocks, photo doubt-solver, and a Tamil-fluent AI tutor that explains why, not just what.

14 days
Free, no card
4 exams
Group I · II · IV · TET
தமிழ்
Native AI tutor
9:41
S
Sadhana · Tutor
● Online · in Tamil & English
Why did the British impose the salt tax?
Two reasons. First, salt was a daily essential — universal demand made it lucrative. Second, by monopolising production they undercut local producers.
📚 Tap to see source: Modern History · Ch 4
Was Gandhi's Dandi march in 1930 then?
Yes — Mar–Apr 1930. 240 mile march from Sabarmati to Dandi. ✓
Ask anything…
9:41
Day 12
Good morning, Arun
A
Today's Mock
Indian Polity
full-length test
100 Q · 120 min·Group I
Start now →
Daily quiz
7/10
Streak
12🔥
Continue
History · Bhakti Movement
60%
Geography · Monsoons
80%
Built for the TNPSC syllabus

Eight features that actually move your rank.

AI Tutor· ஆசிரியர்

A tutor who answers in Tamil, explains in English.

Sadhana's tutor is fluent in both — and switches mid-sentence the way you actually think. Cite a textbook page, paraphrase a Tamil concept in English, or quiz yourself in வினா-விடை mode.

  • Bilingual replies with source citations from NCERT, Samacheer & Tamilnadu Govt textbooks
  • Long-form Socratic mode for concept building
  • Voice mode for revision while commuting
9:41
S
Sadhana · Tutor
● Online · in Tamil & English
Why did the British impose the salt tax?
Two reasons. First, salt was a daily essential — universal demand made it lucrative. Second, by monopolising production they undercut local producers.
📚 Tap to see source: Modern History · Ch 4
Was Gandhi's Dandi march in 1930 then?
Yes — Mar–Apr 1930. 240 mile march from Sabarmati to Dandi. ✓
Ask anything…
Photo Doubt· புகைப்பட சந்தேகம்

Snap a question. Get the worked answer.

Stuck on a sum or stumped by a previous-year question? Point your camera at it. Sadhana reads the page — handwritten or printed, English or Tamil — and shows the full step-by-step solution.

  • Solves printed and handwritten questions in <2 seconds
  • Step-by-step reasoning, not just final answers
  • Saves to your error notebook automatically
9:41
Photo Doubt
Snap. Solve. Done.
Q.14
If a train of length 240m crosses a pole in 16s, what is its speed in km/h?
(a) 48  (b) 54  (c) 54  (d) 60
Solved in 1.2s
Speed = 240 / 16 = 15 m/s
= 15 × 18/5 = 54 km/h
Tap to see step-by-step Tamil explanation →
Daily Quiz· தினசரி வினா

10 questions. 5 minutes. Every single day.

A daily diet of timed questions adapted to your weak spots. The streak system rewards consistency over intensity — because TNPSC is a 12-month grind, not a sprint.

  • 10 calibrated questions tailored to yesterday's mistakes
  • Streaks, badges and weekly ranks against your district
  • Auto-revision of any question you get wrong
9:41
Question 6 of 10
Daily Quiz · History
00:42
Who was the founder of the Mauryan Empire in 322 BCE?
Bindusara
Chandragupta Maurya
Ashoka the Great
Bimbisara
Submit answer →
AI Plan· படிப்பு திட்டம்

Your study plan, rebuilt every Sunday.

Tell us your exam date and target rank. Sadhana lays out every day until then — adjusting for your test scores, available study hours, and the syllabus weightage of every topic.

  • Adapts weekly based on quiz, mock, and read-time data
  • Knows the exact mark-weight of every topic in the latest TNPSC pattern
  • Catches up automatically when you skip a day
9:41
Your study plan
Group I · 84 days to go
M
T
W
T
F
S
S
14
15
16
17
18
19
20
Wednesday — 17 tasks
Read: Chola administration
25 min
Quiz: Medieval India
12 min
Watch: Indian Polity Ch 4
40 min
Now
Mock: Group I Paper II
120 min
Revise: Yesterday's flashcards
15 min
Stats· புள்ளிவிவரம்

See your rank — before exam day.

Every mock you take is benchmarked against thousands of aspirants writing the same paper. Predicted cutoffs, subject-wise gaps, and a weekly diagnosis of where you'll lose marks.

  • District- and state-wise percentile after every full mock
  • Subject heatmap showing topics that will hurt your rank
  • Predicted prelims score with confidence interval
9:41
Your progress
You're ahead of 87% of aspirants.
Last 14 days
72%↑ +14
Trend ↑
By subject
History84%
Geography71%
Polity62%
Aptitude49%
Learn· கல்வி

The whole syllabus, in audio and text.

Every chapter from the official TNPSC syllabus — Indian History, Geography, Polity, Aptitude, Tamil literature — narrated and indexed. Listen on the bus, search in seconds.

  • 600+ short lessons mapped to the official syllabus
  • Tamil narration option for every English chapter
  • In-lesson quizzes that unlock the next chapter
9:41
Learn · கல்வி
Indian History
Chapter 4
The Bhakti
Movement
22 minAudio + text
01
Origin & social context
8 min
02
Major saints — North & South
14 min
03
Bhakti & vernacular literature
11 min
Now
04
Quiz: Bhakti Movement
6 min
📓
Error notebook

Your mistakes, never lost.

Every wrong answer auto-organised by topic. Sadhana resurfaces them at exactly the right interval — so you never miss the same question twice.

🎯
Mock generator

Infinite full-length mocks.

Generate fresh 100-question, 120-min mocks in your weak areas — pulled from a bank of 50,000+ TNPSC-pattern questions and rated by past aspirants.

How it works

Three steps from aspirant to officer.

No drowning in PDFs. No “complete syllabus” videos. Just one calibrated, daily routine that gets you exam-ready.

01

Tell us your exam.

Group I, II, IV, or TET — and the date you're writing it. Sadhana ingests the official syllabus and weights every topic by past mark-distribution.

02

Take a 30-min diagnostic.

A short adaptive test that maps your strengths, gaps, and starting rank against current aspirants. No pressure — just calibration.

03

Show up daily.

A 5-minute quiz, one chapter, one mock per week. Sadhana does the rest — rebuilding your plan, surfacing weak topics, predicting your rank.

The AI that powers sadhanai

Trained on 30 years of TNPSC papers. Fluent in Tamil.

Most “AI tutors” are general models with a thin syllabus prompt. SadhanAI's coach is fine-tuned specifically on Tamil Nadu's official textbooks, every previous paper since 1995, and the explanation patterns of the state's top-performing aspirants.

32k
Past TNPSC questions in training set
600+
Indexed Tamil & English textbook chapters
<1.4s
Avg. answer latency
94%
Tamil instruction accuracy on TNPSC concepts
Cite, don't hallucinate
Every factual answer links back to the exact textbook and page. If Sadhana can't find a source, it says so.
Adaptive difficulty
Questions calibrate to your IRT-estimated ability score after every 5 answers. Like a personal challenger.
Tamil + English code-switching
Ask in Tanglish. Get a reply in whichever language the concept reads cleaner — usually both.
Explain like I'm 12
One-tap simplification. Long technical answer becomes a 3-line analogy your அம்மா could follow.
Exam coverage

Every TNPSC exam.
One subscription.

GROUP I
Civil Services
Deputy Collector, DSP, Asst. Commissioner
12 papers · 8 mocks/wk
GROUP II
Subordinate Services
Sub-Registrar, Asst. Inspector, Auditor
9 papers · 6 mocks/wk
GROUP IV
VAO + Junior Asst.
Village Administrative Officer, Typist
6 papers · 5 mocks/wk
TET
Teacher Eligibility Test
Paper I (1–5) and Paper II (6–8)
8 papers · 4 mocks/wk
+ Tamil Nadu Police, RRB, and SSC support coming Q3 2026.
Pricing · விலை

Less than a coaching class.
More than a coaching class.

Cancel anytime. Pay in INR via UPI, GPay, PhonePe or card. Web prices are ₹50 less than Play Store.

7-Day Trial
Full Pro access — no card required.
₹0first 7 days
  • Everything Pro includes for 7 days
  • Unlimited daily quizzes + mocks
  • Samacheer chapter chip on every Q
  • Auto-converts to Pro at ₹249 — cancel anytime
Start free trial
Most popular
Pro
Unlimited practice — for self-driven aspirants.
₹249per month
₹50 less than Play Store · ₹2,390/yr (save 20%)
  • Unlimited daily quizzes & mocks
  • Samacheer chapter chip on every PYQ
  • AI-personalized study plan (1 refresh/day)
  • Performance analytics + weak-topic detection
  • Wrong-answers bank, bookmarks, revisions
  • Tamil + English explanations
  • No ads
Choose Pro
Premium
Everything in Pro + the AI features.
₹449per month
₹50 less than Play Store · ₹4,310/yr (save 20%)
  • Everything in Pro
  • AI Tutor in Tamil — 4 chats × 20 msgs/day
  • Photo Doubt — 10 / day
  • AI grading on descriptive answers — 5 / day
  • AI study plan refresh — 5 / day
  • Early access to new features
Choose Premium
From the field

5,000+ aspirants. One ritual.

Sadhana's Tamil tutor explained the Constitution in a way my coaching class never did. Cleared Group II in my second attempt.

P
Priya R.
Group II · Madurai · Rank 84

The photo doubt solver is unreal. I scan one PYQ at a time during chai breaks and it builds my error notebook for me.

K
Karthik S.
Group I aspirant · Chennai

I used to study 8 hours and feel I did nothing. Sadhana's plan tells me what to do for 90 minutes — and that's genuinely enough.

A
Anitha M.
TET cleared · Trichy

The daily quiz streak got me through 6 months of demotivation. ஒரே ஒரு வினா கூட விட்டது இல்லை.

R
Ramesh K.
Group IV · Salem
Common questions

Doubts? Answered.

Can't find what you're looking for? Email hello@sadhanai.aiand we'll reply within a day.

For now, yes. We're hyper-focused on Tamil Nadu's state services exams — Group I, II, IV, and TET — because that's where deep, syllabus-aligned AI tutoring makes the most difference. Tamil Nadu Police, RRB, and SSC support arrives Q3 2026.

அம்மாவின் கனவு. உங்கள் சாதனை.

Start studying smart.
Today.

14 days free. No credit card. Cancel any time. Join 5,000+ TNPSC aspirants already on the daily routine.