I m 5'8 and 25 yrs of age 154lbs of wgt.. my target is 62kg in nxt 2 months i m doing weighloss cardio daily.. is it really effective to burn fats.. ?

Any physical: Activity can help burn calories and fat, particularly is combined with dietary restriction. However, to lose down to 62 kg in two months would require you to burn off almost 1, 200 calories/day more than you take in. That's very difficult to do, particularly for a 25 yo female. It's the equivalent of walking 120 miles/day without eating anything. Try to learn life-long restircted diet and instead.