For those who reside or stay in India at the time of waiting for the visa to Vietnam, there are two ways to get Vietnam visa, through Vietnam Embassy in India, or get Visa on Arrival via online service:

Get Vietnam Visa through Vietnam Embassy in India

• Issuing unit: Vietnamese Embassy in India
• Processing time: 4 to 10 working days
• Fees: 55-120 USD/person
• Additional fee: Postal cost
• With Passport requirement
• How to get it? You reach this Embassy in person and follow the required procedures.

Get Vietnam Visa on Arrival via visa service:

• Issuing unit: Vietnam Immigration Department
• Processing time: 2 to 3 working days
• Processing fee: 21.25 USD (1 month single), 26.25 USD (1 month multiple), 35 USD (3 month single)…more(stamping fee NOT included)
• Without Passport requirement
• How to get it? You go online at http://vietnamvisapro.net/, fill in the secure form, and just wait 2-3 days until you receive your Visa Approval Letter, and take this + your passport + 2 photos to Vietnam to get your visa at airport. This seems to be the cheapest and easiest way to get a visa to Vietnam from India

Embassy of Vietnam in New Delhi, INDIA 
Address: 17, Kautilya Marg, Chanakyapuri, New Delhi 110 021, INDIA
Phone: (91-11) 2301 98
Fax: (91-11) 2301 05
Email: sqdelhi@del3.vsnl.net.in; ebsvnin@yahoo.com.vn

Note: Telephone: (00-91) 23018059 – ext: 46 (answering machine; visa officer available on phone from 4:00 to 5:00p.m or for emergency cases only) Working hours: 9:30am – 5:00pm, Monday through Friday. Applications are accepted in the morning, from 10:30 to 12:30. Visa collection is in the afternoon, from 4:00 to 5:00.

Consulate General of Vietnam in Mumbai, INDIA 
Address: B-306 Oberoi chamber New Link road andheri (w), Mumbai 400 053, India.
Phone: (9122) 2673 668
Fax: (9122) 2673 663
Email: vietnam@mtnl.net.in
Website: vietnam@mtnl.net.in; tlsq.mumbai@mofa.gov.vn