To be honest, the back home ties I showed were pretty weak. As I hear it all depends on the Visa officer's mood and your relationship proof.
The only permanent tie I showed of my wife to India is her chequing and fixed deposits account totaling approx. $14,500 (one of them was joint account with her parents)
My wife quit work and her last day was March 31st, 2016 (I showed the end of employment letter, experience letter showing she had been working there for 4 years and her last 7 pay stubs)
Other things I showed:
- Invitation letter inviting her to visit me, in-laws: signed by me, my father and my mom
- My 4 month chequing and 1 month savings account
- House documents I bought for both of us
- Marriage certificate + All the photos of my 2nd trip to India after wedding showing us going to restaurants, my cousin's wedding, celebrating wedding anniversary in Singapore
Funny thing is, my mother-in-law also applied for visitor visa separately 3 weeks before I did and she still hasn't gotten any updates (In-Process). And she even has USA visitor visa plus she has good travel history as she visited US twice before.