From what i read above, if i don't have box for any electronic item then it is not counted as duty and i can claim to be personal / used right ? I am sure it won't be that easy. In case of small objects like Phone etc it is fine as you can carry them in your pocket but what about bigger stuff. Like i have a iHome iPod dock which i will be bringing with me to India, without box and wrapped in some cloth or something, i cannot just say i used it for last 10 months ? (But i do have a bill dated Feb 2012 or something).
Is it a good idea to carry bills of everything you get from there (mostly electronics) to show the customs the actual price and when it was bought ? Does it help in any way ?