braking is not complex, understand ur tyres, brake pads, disks calipers and brake booster and brake oil, all play their part for effective braking, and if any of them is not functioning properly u will have a poor result,
u better change your brake disk to ventilated one and use some good pads original local MK pads ko change kraiyn, tyres if worn out needs replacement or else jo marzi kr laiyn koi farka ne pary ga car will skid with poor braking. brake booster/ cylinder check krwaiyn, flush ur brake oil and pour new one may be its old and fried.
i have kept BAleno for 3 year and its braking was superb, i had new Dunlop R1 tyres, with Ventillated disks and kabli brake pads and flushed brake oil when i replaced the front hub and back wheel hub.