To improve writing speed for the UPSC Mains, aspirants can adopt several practical steps. First, regular practice of writing answers within a set time limit is crucial. They can use a timer to simulate exam conditions. Second, developing a structured answer format—such as using bullet points for clarity—can reduce writing time. Third, engaging in daily short essay writing on current affairs helps improve fluency and speed. Lastly, revisiting and analyzing previous years' papers can provide insights into efficient answer structuring.