hey brother ,sisters

sommon

hello .. i mean if you practice your chest voice daily then you can sing lower and and little upper in chest voice just like you are calling some one very loud and angry and your chest voice become stronger.....so do we need to just practice daily chest voice and it will increase range or we have to go for improve range subject for that range matter ......i hope you are understanding ,

Wigs

Total range doesn't come from just one thing, you could practice just headvoice and maybe go quite high, but if your technique is poor you will hurt your voice. If your technique is good, you would still have a big gap in your total range because your passagio would be weak and you wouldn't be able to sing around that area.

Concentrating just on chest voice won't grow your total range, but it will set you up for it in the future. Taking your chest voice high helps to create a wider area for you to mix and sing in the passagio before having to fully hand off into head voice at the very top of your range.

Your starting point should be a split between stretching chest and bridging from chest to head voice in your daily exercises. Doing this will help you properly use the range you have now and set you up for growth.