The Inaugural Run of 12141 LTT PPTA Superfast Express is shown here as 04 July 1999.
But according to IRFCA mailing list archives and
/blog/post/1999793 this blog post, it was inaugurated on 31 August 1999, as 2141/42 Kurla - Patna Bi-Weekly Superfast Express.
Can mods please change the inaugural date for accuracy?