1 to 14 days or more
Postage cost - Rupees 12 for air mail and rupees 7 for a normal mail. You can also calculate the postage cost on the India Post website. If you're asking about the time it takes for a postcard to reach the u.s from India, I've sent only one postcard to the u.s, and it took around 9 days to reach the destination. But time can vary.
international airport
You will have to reach San Francisco from where it can take between 20 to 30 hours to reach India
it was Portugal
after 3 hours
if you go by walk you can take your can take 2 years
The only way one can reach Sikkim is by passing through West Bengal. So you have to take a flight for Bagdogra from Hyderabad. From there you can hire a local taxi as it is just 120 kms from there. For more - http:/www.indiatoursguide.org/sikkim/how-to-reach-sikkim.html
To reach the letter in proper place
By train upto Nandyal and next by any road means.
i would say 10 days
three days
It depends upon the speed of the flight.
Postage cost - Rupees 12 for air mail and rupees 7 for a normal mail. You can also calculate the postage cost on the India Post website. If you're asking about the time it takes for a postcard to reach the u.s from India, I've sent only one postcard to the u.s, and it took around 9 days to reach the destination. But time can vary.
1hr 55min to 2hr 20min HYD to DEL by a nonstop flight operated by Jet Airways, Kingfisher Airlines, Indian Airlines, JetLite India or Spicejet Airways.
international airport
it takes upto 8 to 9 hrs
Mallikarjuna temple can be reached from Delhi via Hyderabad. The temple is apprx 150 Km from Hyderabad. One can visit the temple and come back the same day to Hyderabad. There are simple hotels as well in Srisailem if one wishes to stay overnight.