Website: https://vietnamvisa.govt.vn/requirements/vietnam-visa-for-citizens-of-india/
For Indian citizens, one can obtain an on arrival visa for Vietnam. The visa application fees per person for the time of under 1 month (single & multiple bases are the same) is US$.35.00 and USD 45 for 3-month single entry whereas USD 65 for 3-month multiple entries. Follow the below mention steps to apply for the visa for Vietnam:
Passport with at least 6-month validity counting from the date of arrival and blank pages left for new stamp
Brunei, Belarus, Denmark, Finland, France, Germany, Italy, Japan, Norway, Russia, South Korea, Spain, Sweden, and United Kingdom. Moreover, citizens of Thailand, Indonesia, Singapore, Malaysia, Cambodia, and Laos do not need a Vietnam visa if they visit Vietnam within 30 days.