Visitor Visa - B2

have been a regular reader at this forum and have got valuable tips from the experience of others. Its time now to return the favor. My parents applied for a visitor visa on Mar 10 2004 at Mumbai and got a 10 yr multiple entry. My dad is 63 years old and my mom is 58. Both of them are retired for the last 2 years. Although my dad qualified for the drop box they both had to go for an interview since my parents are planning to travel together. I sent them the following documents:

1. Form I-134, notarized - 1 each for mom and dad
2. Letter to consulate
3. I-797 Status copy
4. Copy of my entire passport & I-94
5. Bank statement - last 5 months
6. Bank letter notarized-showed a balance of 10k plus
7. Letter from employer showing position, salary and start date
8. Tax returns including W2 forms for 2003, 2002 & 2001
9. Recent pay stubs - 5 months
10. Original Birth Certificate
11. Copy of degree certificate and original US transcript (I came here on F-1 to do MBA)
12. Invitation Letter

PS : I got my F-1 also at Mumbai for Fall 2000 valid for a period of 5 yrs

In addition to this, my parents carried a 2 inch box file that contained their asset papers namely Flat, shares, FDs, Pension letters, etc. I created a one page asset summary in US$ as the first page of this file. All supporting original documents were below this first page. On arrivng at the consulate they were put thru a security check and then were told to deposit their passports at Window # 1 where they were given a pink token and told to wait for their number to be called. When their number was called they were asked to go to Window # 2 and were asked the foll questions.
1. Who is there - My son
2. What does he do - He is an energy analyst
3. What has he done - He has done his MBA(Fin) from Univ of ........
"OK We are giving you the visa - Enjoy your holiday"

The consular officer DID NOT SEE A SINGLE DOCUMENT. The only document that my parents submitted to the consulate were their application forms which clearly stated that they are going to the US to visit their son and his family and had my name and all contact details. I don't want to sound grandfatherly but be as open and clear about every thing when dealing with the consulate on Visa issues. I do have a younger brother working in India but the consulate had no way of knowing that unless specifically asked by them at the time of interview. I dont think that single parent only child is an issue. So take heart and All the Best