I want to send parcel of around 20 kg to kathmandu Nepal, What will be the cost and time ?

There are two options: air mail and surface mail.
It only takes around 15 days for the parcel to reach the destination via air mial but the rate is quite high of CNY1,060. The fare for surface mail is much cheaper of CNY250 but it takes 30~45days on the way.

Thank you for the reply. I want to know detail about sending air mail or Surface mail. As I am new in China I do not know about the postage services so will you please inform me in detail where to contact or the service provider in Tianjin China.

Thank you
Sangeeta

Sangeeta, there are several China Post branches throughout the city. you can find a neaby busniess hall to know more about the postage services.