H1B, H4 Visa

Hi All,
        Last week i had attended h1 and h4 visa interview,both me and my wife got h1 and h4.They asked following questions
  1.Explain your internal project?
  2.What is your Qualification?
  3.Show me your previous company work exp certificate?
  4.When did you marry?
  5.How many were attended your marriage?
  
My suggestion is take all the documents before attending h1.

1.Passport.
  2.One Photograph (One photograph.The photograph should measure 2 inches square (roughly 50 mm square) with the head centered in the frame but must have only a plain white background) 50mm x 50mm
  3.Original signed form DS-156
  4.Original Form DS-157 only if you are 15 to 55 years of age.
  5.Valid HDFC Bank visa fee receipt(HDFC Bank)
  6.Interview Appointment Letter.
  7.H1 approval Form I-797.
  8.Form I-129.
  9.Original Petitions
  10.All Educational and Experience certificates
  11.LCA and Support.
  12.Employer Letter(This is the letter given to the H1 holder by his/her employer).
  13.Bank letter. This is the letter from the bank of the H1 holder, it should mention the H1 holders name,
date account opened, type of accounts & balance (Applicable to beneficiaries who are already working
  14.Payslips (Last four Months).
  15.Bank statement for last six months
  16.IT Returns for last three years (Form16)
  17.Previous work experience certificates.
  18.Visa application fee (As applicable)
  19.Visa issuance fee (As applicable)
  20.Present Company Offer Letter.
  21.Appointment and Relieving Letters from the Previous Employers if any.
  22.Certifications.
  23.Company ID Card.
  24.Confirmation Letter.
  25.Marriage Certificate.
  26.Pan Card.
  27.Visiting Cards.
  28.Pay stubs (recent) (Applicable to beneficiaries who are already working in US on H1)
  29.Tax returns for previous year (Applicable to beneficiaries who are already working in US on H1)
  30.Company Website copies
  31.Company Photographs.

H4:
1.Form DS156 completed & signed.
2.Form DS157 completed & signed.
3.Passport.
4.Original H1 Approval (Notice I-797)
5.Copy of marriage certificate. Also carry the original marriage certificate.
6.Marriage photos.
7.Form I-134 Affidavit of support, completed, signed & notarized.(applicable if beneficiary is already in US on H1)
8.Employer letter. This is the letter given to the H1 holder by his/her employer.
9.Bank letter. This is the letter from the bank of the H1 holder, it should mention the H1 holders name, date account opened, type of accounts & balance.( (applicable if beneficiary is already in US on H1)
10.One color photograph, 37mm X 37mm square showing full face, preferably without head covering.
11.Visa application fee (As Applicable)
12.Visa issuance fee(As Applicable)
13.Copies / original Pay stubs (recent) of H1 Beneficiary.
14.Copies of H1 holders previous years W2 and Tax returns

Thanks
Srinivas