I’m planning to buy a one-bike garage solution and intend to use it for office and city commuting in traffic, as well as highway trips. I’m also interested in taking up off-roading as a hobby and improving my skills in it. I’m 6 feet tall, and considering my comfort and the above requirements, I believe an adventure bike would be the right choice. I test rode the Triumph Scrambler 400 X and really liked its ergonomics. However, after riding the Guerrilla 450, I found the Triumph’s engine somewhat underwhelming in comparison. I’m also planning to test ride the KTM 390 Adventure with the new 350cc engine, but I feel it might have a similar issue as the Triumph. At this point, I feel that the Himalayan 450 would best meet all my requirements. Would you recommend increasing my budget by ₹60,000 and going for the Himalayan 450, considering both overall benefits and long-term ownership costs?

The Royal Enfield Guerrilla comes with a 452cc engine, whereas the Triumph Scrambler 400 X now comes with a 349cc engine so its no surprise that the Triumph didn't feel as sprightly in comparison. However, for your usage, should you be willing to sacrifice some pep, the 350cc Scrambler 400 X is actually a great all-rounder. Especially since you're a novice and want to get into off-roading. 

The Royal Enfield Himalayan 450 is a great bike but we'd advise you to not consider this bike, at least not if you plan to start your off-roading journey with it. At 196kg, the Himalayan is a heavy machine and with its fuel tank full, it also feels rather top heavy, which could get challenging for a beginner to manage at crawling off-road speeds. However, for city commuting and highway journeys, this Royal Enfield bike will be quite nice - its only off-roading where its weight will be a serious deterrent.

The 350cc KTM 390 Adventure would be a good middle-ground option between the two aforementioned bikes - in theory, at least. Its lighter than the Himalayan and has more power than the Scrambler. A test ride should shed more light on whether this KTM bike is the one for you. 

Since you said you're looking to get into off-road riding, we'd be remiss if we didn't recommend the Hero Xpulse 210 to you. Now, the Xpulse is definitely a smaller and slower machine than all the machines listed above but if you genuinely want to hone your craft and get better at off-road riding, there's genuinely no better place to start than here. City commuting is another strength of the Xpulse, although on the highway, its engine feels a little stressed post 100kph. If you don't mind compromising on outright performance on the highway, then the Xpulse will be a good option for you. Some other benefits of choosing the Xpulse would be that it returns excellent fuel economy - much higher than all other options - and it costs much less to buy too.

You need to evaluate your priorities and make an informed decision after test riding all three bikes. Best of luck!