You can definitely learn on a Triumph Scrambler 400 XC, as it's a very forgiving 400cc 40hp machine; however, we would steer you toward the Hero Xpulse 210 instead.
Considering you're also going to do some off-roading and you're simultaneously also going to be learning to ride a motorcycle, the Xpulse is a more forgiving machine than the Scrambler 400 and will be a better fit for city usage as well.

