Buy Offer - Air Cargo Services

I Would like to Send Some Books, Utensils, Blanket and Shoes to My Relative in London. I Reside in Mumbai. I Would like to Know the Amount that Will Cost Me per Kg. and How Many Days Will It Take to Deliver the Parcel and also Where Will the Parcel Be Delivered? Will It Be Delivered Directly to the Address in London ? I Would also like to Know the Documents that Will Be Required to Be Submitted. Btw the Total Parcel is Around 49 Kg.
hope to Recieve a Reply Asap.