I am doig a sedentry job n i m 75 kg wid a height of 5 feet 3 inches.I need to reduce i do diet and exr 1 hr.?

I am 26 Years old andI am taking only fruits and pulses in my diet then also i m not able to reduce can anyone help me who has gone from the same phase like me.i am doing execrcises since last 1 month and i don have any problem like thoiroid,i gained 15 kgs in 1 year of span.help plz if anyone can.........i m fedup now