A eVisa fees waiver scheme has been introduced for citizens of China, India, Indonesia, Russia, Thailand, Malaysia, and Japan, with immediate effect, valid until May 31st, 2024 (Last date of arrival) for tourism only. To avail of the scheme, please select the 30-day single entry eVisa option.官网说又延期到5月31日了
https://www.srilankaevisa.lk/information
冷知识:可以正儿八经免签入境斯里兰卡的国家很少,只有新加坡、马尔代夫、塞舌尔和捷克。