I think the most comparable models between Mahindra and John Deere would probably be the 5325 and the Mahindra 7520.
Base Price Mahindra 7520: 29,250
Base Price John Deere 5325: 25,325
* the mahindra has the 4wd to begin with whereas the John Deere lists it as an option.
I built a 5325 up for 35,966 with:
- isolated operators station
- MFWD
- 24by24 speed power-reverser w/ E-pto
With this configuration I get a MSRP of 35,966. I have this exact tractor, however, I paid about 29,500 for it about two years ago. You figure generally with the Deere tractors that you can get about 15-18% off of the list price.
As for the Mahindra, it certainly looks like a rugged machine and has about 800 pounds on the John Deere; the mentality that more weight is always better is not correct however. More weight means more soil compaction and more fuel usage (depending on the application). I would think that you would be able to get a Mahindra 7520 for 24k-25k with MFWD and a 12 by 12 transmission. So, for roughly 4-5k more you get double the number of speeds, you get an Isolated operators station, you get an economy PTO which is incredibly important for any sort of mowing application, and you get the backing of an American based company that has been around since 1837. For occasional usage I think the Mahindra makes more sense given the savings you get up front. As someone who uses a tractor more than several hundred hours a year, I really would prefer the John Deere 5325 to the comparable Mahindra offering for it's superior transmission offerings, superior PTO offerings (fuel saving offerings), and the peace of mind that comes with an old well known company. Ultimately, you get what you pay for.