Hello i am 24m. from last 15days i take cardio exercise like walking, bicycling for 50 minute, than go for wight lifting exercise.so is this proper way.

Good: Rule of thumb is 45 minutes of cardio and 45 minutes of weights.

Sounds good: Sounds like a good plan. Weight training 3-5 times / week is plenty, depending on if you split it into groups on specific days. If all one combined routine, then 3 days / week sufficient. Cardio can be every day if desired and not too much -- careful not to overtrain. Good Luck.

Primary goal?: if you're training to lose fat, your balance is going to be very different than if you're trying to gain muscle. A personal trainer can be a great investment in your case.