The Department of Posts comes under the Ministry of Communications and Information Technology.
Official india post website has links to speedpost tracking, e-Post, e-Payment, postage calculator, MO Videsh, ePost office, media post, express parcel post, direct post, postal life insurance (PLI), money order, Instant Money Order (iMO), International Money Transfer, Electronic Clearance Service (ECS), Electronic International Money Order (e-imo), post office saving account, recurring deposit account, time deposit account, post office monthly income account, kisan vikas patra, national saving certificate, Senior Citizens Savings Scheme etc
India Post site also contains details like about, annual reports, holidays, citizen charter, VP Post, Free Post, forex services, greetings post,India Post Information etc
Department of Posts, Dak Bhavan, New Delhi-110 116
Web : http://www.indiapost.gov.in/