THEORETICALLY , you are supposed to file return where the jurisdiction lies .jurisdiction lies at aplace where the income is earned .
PRACTICALLY
Keep on filing at old place , as per PAN
if you earning income other than salary then you have to infiorm the department about the change of place.
in it is salary income there is no problem. you may deposit where you are staying or at company address
hey it is not at all a problem ..... u can file ur return throgh bangalore also ... if ur return consists only salary ...... u can file ur return through electronically even ur PAN is addressed anywhere