Look sir ..... i am saying this .... is there any point in rearranging this i mean shifting br to tertiary carbon

see rearrangement is possible only when there is formation of carbocation as 3 degree is more stable than 2 than 1st...so methyl shift or hydride shift occur

if the reaction proceeds through intermediate then only

In E2 there is no rearrangement. In E1 there is rearrangement. But in both cases more substituted alkene is formed

How you can rearrange bromine Sweta?

no, here we will not rearrange but in E1 carbocation intermediate is formed after removing X so rearrangement is possible

in E2 elimination there is no intermediate formed so rearrangement is not possible but in the care of E1 there is carbocation is formed so rearrangement takes place