Hyderabad runs on sugar, from the qubani ka meetha at every wedding to the three or four sweet Irani chais that punctuate the day. You do not have to give them up. You just need to understand how sugar actually damages teeth and time your habits smartly.
It is frequency, not quantity
Every time you sip sweet chai, the bacteria in your mouth produce acid for about 30 minutes. Someone who sips one large chai in ten minutes does far less damage than someone who nurses small cups across three hours, even if the total sugar is the same. Cluster your sweet treats rather than spreading them out.
Rinse, don't brush, right after
Acidic and sugary foods soften enamel temporarily. Brushing immediately can scrub away that softened layer. Instead, rinse with plain water right after, and brush 30 minutes later. Ending a meal with a piece of cheese or plain water helps neutralise the acid faster.
Watch the sticky ones
Sticky sweets that cling to teeth, like certain halwas and caramelised desserts, keep feeding bacteria longer than something you swallow quickly. If you eat them, rinse well and don't let them sit between meals.