The world’s first official airmail was sent from _______to _______ in February 1911.

Correct option is A

The correct answer is Allahabad, Naini.

• The world's first official airmail flight took place in India on 18 February 1911, a journey of 18 kilometres (11 mi) lasting 27 minutes across the from Allahabad to Naini.
• Only floating post office of India Post is situated in Srinagar, Kashmir which was inaugurated in August 2011 at Dal Lake.

Information Booster:

• The speed post service was introduced in India in 1986 by the department of India Post.
• It is used for the purpose of the faster delivery of parcels, letters, cards, documents, and other important stuff.
• India Post started this service under the name of the "EMS Speed Post".
• The present headquarter of India post is situated at Dak Bhawan, Sansad Marg, New Delhi.