Brief Answer:
Answered your concerns

Detailed Answer:
Hi,

Thanks for writing to us.

I shall answer your queries one after the other.

What diet and exercises should I follow in this regard?
---- Low carb and high protein diet. With negative energy balance. You must take less calories in than you spend out.

Can I do cardio and weight training exercises everyday or should I do it alternatively?
----- You can do both the same day.

Is it necessary to give a break from gym or can I go daily?
---- 5 days a week is optimum

Hope, I answered your queries.

Please do ask if any doubts.

Regards,

---