Staple the buttons in the holes by sewing in using a bigger needle. Staple behind so that the buttons get embedded and gives elegant look. Should be done skillfully so that the folds are symmetric and looks good. Tuck the fabric and staple it from the sides. Hammer nails in the wall to anchor the headboard.
Cost Analysis -
Plywood - Rs 850
Skirting Wood - Rs 800
Foam - Rs 1500
Skirting Foam (from scrap foam) - Rs 300
Glue - Rs 500
Kora - around three meters Rs 300
Fabric three meters (depends upon your choice can be from 500/m to 2000 /m. I used 1100rs/m) - Rs 3300.
Buttons - Rs 300
Total around Rs 8000/- The cost of same quality of headboard available on some sites is from Rs20000 to Rs 25000.
The final setting!!!!