B1/B2 visa general query and B2 Visa for 7 years kid

[Susnandini]

Hello,
My sister is in US with a Green card, Myself and my daughter like to visit her family during my kid’s summer vacation. My sister will be sponsoring us.
Here are some queries I have and would appreciate if someone could help, I could not get any hold of information with regard to my query by goggling. Please advice.
1. I’m holding U.S. B1/B2 visa, which was sponsored by my previous company, I traveled for 3 weeks for business purpose with the same. And now I’m currently unemployed.
My Visa Type/Class is 'R- B1/B2'.There is no Annotation marked on my Visa. In April/May, I wish to travel to US as a tourist, would I be able to use the same visa or do I have to apply for a new visa?
2. My daughter is 6 years old, would I need to take an interview appointment with VO or shall we I go with the drop box (Interview waiver program)
3. If she is eligible for drop box, do i need to submit both parents biographic information and Valid US visa. My husband doesn't have a US visa and it is just me who has it. Will it be OK if we submit US visa of mine alone.
4. What would be the appropriate document I may need to carry (or attach) to show a strong binding of her with India

Any help would be highly appreciated.
Thanks!!

[Libra_14]

1. I?m holding U.S. B1/B2 visa, which was sponsored by my previous company, I traveled for 3 weeks for business purpose with the same. And now I?m currently unemployed.
My Visa Type/Class is 'R- B1/B2'.There is no Annotation marked on my Visa. In April/May, I wish to travel to US as a tourist, would I be able to use the same visa or do I have to apply for a new visa?

You can use this visa.

2. My daughter is 6 years old, would I need to take an interview appointment with VO or shall we I go with the drop box (Interview waiver program)

Go with drop box

3. If she is eligible for drop box, do i need to submit both parents biographic information and Valid US visa. My husband doesn't have a US visa and it is just me who has it. Will it be OK if we submit US visa of mine alone.

No, your is sufficient - but since she is minor, you'll need consent from her father that he has no obligations.

4. What would be the appropriate document I may need to carry (or attach) to show a strong binding of her with India

Not necessary for drop box.