I am kind of confused here. So when i get engaged to a girl, i give her engagement ring and then on the wedding day i have to give her a wedding band.
But, do they wear Engagement Ring and wedding band together all the time ? or how does it work ?

Or can i just give Wedding band and not the Engagement ring ? 

I am planning to get married (probably enagement on the same day ? ) so what's the best thing to do here ?

Please suggest.

Thanks.

 WTF is this wedding band? raakhi badhne kuro garya ho ki ke ho? 

on a serious note - if i were you, i'd buy her just one, but a really good one. but in the end, your relationship/love can't be judged by the quantity or quality of those pieces of metal you exchange. 

 what is wedding band!!!

US_returnee,

I prefer having both together :), but ask your to be wife. In case you buy both of them make sure both of them are cute and small.
Normally wedding band is simple gold/dimond round ring ( at least mero jamana ma :p), which you put first and then engagement ring is normally diamond which you put after the wedding band.

But again its your choice...and her wish..I don't think its compulsary to get both.

Hope this helps

Most girls prefer both (for obvious reasons). If you are in the US, girls wear both or just the engagement ring.. Never seen anybody wear just the wedding band.  

Give her both at the same time. They go together. Wedding band completes the ring.

So, Most people here don't even know what Wedding Band is ? WTF ?

We wear both.

 Reminds me of a Nepali girl who wore a thong and an underwear on top of the thong since the thong was too sexy to be worn by itself.

Girls love rings or other jewelries as many as they can have..lol

But my suggestion to you is 

if there are going to be two occasions where you have to offer rings to your would be wife, buy a set of engagement ring and a wedding band. Then, give engagement ring on engagement ceremony and wedding band on swayamber. She will wear it both as a set. In such case, you don't have to buy a very big engagement ring as it'll be accompanied by a wedding band.

In other case, where there will be only one occasion for you to give her a ring, then go for a good size single engagement ring or a set of engagement ring and a wedding band whichever you prefer.

Yes and some girls also prefer a diamond necklace thrown in as a bonus.

Ask her if she wears diamonds. Not all females do on moral grounds.