Set off and Carry forward

Is it necessary to set off current year business losses before setting off brought forward business loss?
(both being non-speculative)

Eg.
Income from HP = 60,000

Income from business A= 1,00,000

Current year loss in business B= 50,000

B/f loss in business A= 70,000
B/f loss in business B= 80,000

Please tell me what will be the minimum possible GTI in such a case.