Neither the Argentine Lanzini nor Austrian global Arnautovic are out-and-out strikers but with Andy Carroll injured, Moyes paired them up-front and they played like they had been a partnership for years.
Mark Noble's opener for the London side in the 25th was cancelled out before the interval by Huddersfield midfielder Joe Lolley.
" West Ham is a very big name, with a great squad with very good individuals and a very good manager as well".
With the wind in their sails, West Ham pushed for a third and came within inches as Aaron Mooy cleared off the line after Lossl had failed to deal with an Aaron Cresswell corner.
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Siddaramaiah said the party's poll preparedness was reviewed in detail at the meeting and its strategy chalked out. "(Prime Minister) Narendra Modi may also raise the same issue because they have no issues there".
Making such a mistake on his first home Premier League start could have easily affected the 25-year-old, but he responded in the flawless fashion by levelling things up before the break.
That suggested a tight battle in the 45 minutes to follow but West Ham came out and put the game beyond Huddersfield within 15 minutes.
Arnautovic then sent Lanzini through with a smart through ball with the outside of his foot and the Argentine slotted home confidently to make it 3-1 in the 56th.
The introduction of new signing Alex Pritchard gave Huddersfield renewed hope, but there was nothing the former Norwich City man could do as Moyes celebrated his milestone win.
"It's a promise we intend to keep - but, for today, we shall have to delay being Barcelona".