578 km · 6 toll plazas · about 10 h 25 min on the road. Change the vehicle, fuel or mileage below and every number updates.
“est.” = this plaza doesn't publish fees in the NHAI dataset; we use the median fee for your vehicle class.
Mahabalipuram to Coorg is a full day on the road of 578 km, mostly on NH275 and NH75.
You cross 6 toll plazas across Tamil Nadu, Karnataka. For a car the published fees add up to ₹425 one way, about ₹0.74 per km. 2 plazas on this route do not publish fees in the NHAI dataset; budget about ₹160 extra to be safe.
Coorg is a hill destination: the last stretch climbs ghat roads, where mileage drops by roughly 15–25% and speeds fall sharply. Our fuel figures use flat-road mileage, so add a buffer.
States on the way: Tamil NaduKarnataka
Fees for a single journey with FASTag. Return fees apply when you come back through the same plaza within 24 hours; a monthly pass covers 50 single journeys in a month.
| # | Toll plaza | At km | State | Car single | Car return | Car monthly | LCV | Bus/Truck | Multi-axle |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Mahabalipuramstate | 11 | Tamil Nadu | n/a | — | — | — | — | — |
| 2 | Chennasamudram | 102 | Tamil Nadu | ₹45 | ₹65 | ₹1,435 | ₹105 | ₹145 | ₹230 |
| 3 | Hoskote | 301 | Karnataka | ₹25 | ₹35 | ₹685 | ₹40 | ₹80 | ₹130 |
| 4 | Mysore Road (P5)state | 340 | Karnataka | n/a | — | — | — | — | — |
| 5 | Sheshagirihalli | 350 | Karnataka | ₹180 | ₹270 | ₹5,945 | ₹290 | ₹605 | ₹945 |
| 6 | Gananguru | 439 | Karnataka | ₹175 | ₹260 | ₹5,810 | ₹280 | ₹590 | ₹925 |
| Total (published fees) | 578 | ₹425 | ₹630 | ₹715 | ₹1,420 | ₹2,230 |
Totals for all 6 plazas, including our estimate for 2 plazas without published fees. “No FASTag” is the 1.25x UPI rate.
| Vehicle class | One way (FASTag) | Return in 24 h | No FASTag (UPI) |
|---|---|---|---|
| Car / Jeep / Van | ₹585 | ₹950 | ₹731 |
| LCV / Mini bus | ₹965 | ₹1,445 | ₹1,206 |
| Bus / Truck (2 axle) | ₹1,940 | ₹3,025 | ₹2,425 |
| 3-axle commercial | ₹2,205 | ₹3,610 | ₹2,756 |
| 4–6 axle (MAV) | ₹3,060 | ₹5,000 | ₹3,826 |
| 7+ axle (oversized) | ₹3,690 | ₹6,030 | ₹4,613 |
One way, 578 km, at Tamil Nadu prices (petrol ₹108.78/L, diesel ₹100.59/L). Typical highway mileage; change it in the calculator for your car.
| Car type | Petrol | Diesel | CNG | Electric |
|---|---|---|---|---|
| Hatchback | ₹3,492 | ₹2,642 | ₹2,212 | ₹1,445 |
| Sedan | ₹4,191 | ₹3,059 | ₹2,614 | ₹1,651 |
| SUV / MUV | ₹5,715 | ₹4,152 | ₹3,382 | ₹2,101 |
Petrol is cheapest in Tamil Nadu (₹108.78/L) and dearest in Karnataka (₹111.30/L). Filling the ~39 litres you need in Tamil Nadu saves about ₹97 versus buying it all in Karnataka.
For the same sedan, fuel for one way costs ₹4,191 on petrol, ₹3,059 on diesel and about ₹1,651 on electric (public fast charging at ₹20/kWh; home charging is far cheaper). An EV with ~350 km real range needs about 2 charging stops on the way.
The pass costs ₹3,075 for 200 crossings (₹15.38 per crossing) on NHAI plazas. This trip uses 4 crossings one way — worth about ₹62 of pass value against ₹425 in regular fees. If you drive highways often, the pass pays off on this route.
Return within 24 hours and the car toll for the round trip is ₹630 instead of ₹850 — a 26% discount that FASTag applies automatically.
About ₹585 one way with FASTag across 6 plazas — ₹425 in published fees plus ~₹160 estimated for 2 plazas that don't publish rates. A return within 24 hours costs ₹950. Without FASTag you pay 1.25x by UPI: ₹731.
6 on the fastest route: Mahabalipuram, Chennasamudram, Hoskote, Mysore Road (P5), Sheshagirihalli, Gananguru.
About 39 litres for a car doing 15 km/l (₹4,191 at Mahabalipuram prices). A hatchback at 18 km/l needs ~32 L; an SUV at 11 km/l needs ~53 L.
Around ₹4,776 one way for a petrol sedan (fuel ₹4,191 + toll ₹585), or ₹9,332 for a same-day return. Split between four people that is ₹1,194 each, one way.
Plan on about 10 h 25 min including short breaks. Free-flowing traffic can do it in 7 h 27 min, but towns, trucks and plaza queues usually add time.
One way with FASTag: bus/2-axle truck ₹1,940, 3-axle ₹2,205, 4–6 axle ₹3,060, 7+ axle ₹3,690 (includes estimates for plazas without published fees).
Yes, plazas charge the same fee in both directions, so the Coorg to Mahabalipuram toll is the same ~₹585 for a car. Fuel cost differs only if you fill up at Coorg's state price.
Fees are revised every 1 April and some plazas change mid-year, so treat results as a close estimate. Spotted a wrong fee or a missing plaza? Tell us — we fix reported errors within 72 hours and log them on our corrections page.
Built and maintained by Nikhil Shrivastava. Full method: how the calculator works.
Last updated: 24 October 2026