SINDHULI, Dec 5: Rina Sada defeated her opponents in last year's local elections and became a ward member of Dudhauli Municipality-9. Dedicating herself to public service is not a challenge for her. But she has to deal with a great amount of awkwardness when she has to sign agreements or other documents or even the minutes after each meeting at the ward. As she can't write her signature, she has to rely on a thumb impression.