"We will be there (in England) almost a month before the first test match. That gives us that much more time (to prepare)," former India all-rounder Shastri said.
India will come into the contests against England high on confidence after beating hosts South Africa 5-1 in ODIs and 2-1 in T20 competition earlier this year.
India had earlier bounced back after losing the first two tests against the Proteas to finish the series 2-1.
"What our boys did in South Africa makes me proud as a coach because there were 21 days of cricket and on each one of those 21 days, India competed," Shastri added.
"The one-day series we won after 25 years. And so, from a coach's point of view, you have to just stand up and say 'well done, guys. Simply magnificent. You have raised the bar'."
India lost the five test series 3-1 when they visited England four years ago, but prevailed 3-1 in the ODI competition. The hosts won the sole T20 match.
(Reporting by Shrivathsa Sridhar in Bengaluru; Editing by Christian Radnedge)
