"As per my knowledge, DELNET provides Email service, especially the RENNIC Email facility, at Rs. 2750/- per year through the National Information Centre (NIC) way back in 1991. So, DELNET might be the answer."
"A concordance is an alphabetical list of the principal words used in a book or body of work showing location in the text with immediate contexts. Because of the time and difficulty and expense involved in creating a concordance in the pre-computer…"