The Doppler Batch - a year-long, IAT-only dropper programme. Two classes a week per subject, a full test series, a mentor, and the parallel tracks that fix your weak subject. You dropped for one reason: to get in. Let’s get you in.
“Doppler Batch - like the physics effect, your prep frequency shifts up.”
Pro vs Max vs Ultra
Same classes, same tests, same mentor programme - Max adds the crash course, All-India mocks and the offline layer. Ultra caps the room at 50 and adds the offline IISER Pune workshop.
₹3,999/ one payment · year-long, to the exam
₹4,99920% offYou save ₹1,000
Works out to ₹20.40 a day across the 196 days to 31 Jan 2027
The complete course:
₹7,999/ one payment · year-long, to the exam
₹9,99920% offYou save ₹2,000
Works out to ₹25.23 a day across the 317 days to June 2027
Everything in Pro, plus:
₹28,998/ one payment · year-long, to the exam
₹35,99819% offYou save ₹7,000
Works out to ₹91.48 a day across the 317 days to June 2027
Everything in Max, plus:
Prices exclusive of 18% GST
| Doppler Pro · ₹3,999 | Doppler Max · ₹7,999 | Doppler Ultra · ₹28,998 | |
|---|---|---|---|
| Batch size | 300 students | 150 students | Only 50 students |
| Live classes | 12 classes / wk + doubt | 12 classes / wk + doubt | 12 classes / wk + doubt |
| Duration | 31 Jan 2027 | June 2027 | June 2027 |
| Notes / modules | E-book | E-book | Full modules |
| DPPs | |||
| Practice sheets + mind maps | |||
| Test series (weekly / monthly / quarterly) | Full | Full | Full |
| Chapter-wise PYQs | |||
| Detailed report after every test | |||
| Monthly strategy session | 1-1 / offline | ||
| Mentorship programme | Online | One-on-one & offline | |
| Recorded lectures + in-app doubt resolution | |||
| Non-Bio & non-Maths dedicated sessions | |||
| All-India mock test series | Included (worth ₹3,499) | Included (worth ₹3,499) | |
| Crash course included | Included (worth ₹7,999) | Included (worth ₹7,999) | |
| Offline centre access + visits | |||
| Quarterly Parent-Teacher Meeting | |||
| Interaction with an IISERite | |||
| Offline IISER Pune Workshop | Included (₹15,000 value) | ||
| Buy Doppler Pro → | Buy Doppler Max → | Buy Doppler Ultra → |
Prices exclusive of 18% GST
People who cracked it
Chemistry faculty
IISER Pune
Biology faculty
IISER Pune
Maths faculty
IIT Kanpur
Physics faculty
IIT Bombay
Doppler Batch FAQs
Everything about ClassPe's dropper batch for the IISER Aptitude Test (IAT) 2027.
Doppler is ClassPe's dropper batch for IAT 2027 - built for students dedicating a full year to cracking the IISER Aptitude Test. It is year-long and IAT-only: intensive full-syllabus coaching across Physics, Chemistry, Mathematics, and Biology, with a heavier test schedule and one-on-one mentorship.
It can be, if the year is used properly. The IAT has an acceptance rate of roughly 1-1.5%, making it as competitive as JEE Advanced. A drop year only pays off with a structured plan, consistent testing, and accountability - which is exactly what Doppler is built to provide.
Three. You can appear in the year of your Class 12 final exam and in the two consecutive years after it. A drop year is a genuine, legitimate second shot at an IISER seat - not a last resort.
Kepler splits your year between boards and the IAT. Doppler doesn't - it's IAT-only, so the pace is faster, the syllabus coverage is deeper, and the test schedule is heavier. If you have a full year to give, Doppler uses all of it.
By diagnosing before re-teaching. Your first weeks in Doppler establish exactly where marks leaked - concept gaps, retention decay, or exam strategy - and your mentor builds the year around closing those specific leaks, tracked test by test.
Because knowing once isn't scoring. Doppler runs the full retention-curve cycle - every concept re-tested at 14, 30, and 90 days - and every test comes with a performance breakdown: score, trend, weak areas, next step. Over a full year, that turns knowledge into consistent marks.
Cutoffs vary each year by campus, category, and seat availability, but a score of 150+ is generally competitive, and 200+ typically places you in the top ranks. Doppler's year-long test cycle is built to push your score into those bands.
Eight live classes - two per subject across PCMB - each on the fixed 3½-hour class SOP, which is 28 live hours a week, plus the Dynamic Sheet daily practice and the scheduled test calendar. Structure first; motivation gets easier when the plan is already made.
No relocation. Doppler runs live online, so droppers anywhere in India get a full-time batch structure - live classes, same-evening recordings, same-day doubt solving - without moving to a coaching city.
We reply on WhatsApp within 10 minutes, 8 AM-11 PM