Q. Why there is a difference of 20k for STD 150 and Twin disc 150 - Pulsar 150?

Because the fit and finish is better than the neon version in the twin disc variant and you get a wider tyre and the twin disc offers better breaking. But end of the day all the variants are more or less the same.

There will be few dimension changes and seat comfort, front flaps, rear disc, tire size will be added.

Because of styling,finishing and twin discs with abs,also feel much sporty then previous versions

Look more sporty, more comfort, tyre size, double-disc mean better braking system.

Look more sporty, more comfort, tyre size, double-disc mean better braking system.

The main reason is that there is a huge cost of putting another disc brake.