Pacer Mohammed Shami's dream Test debut of nine-wicket haul against the West Indies here will ensure that India will head for South Africa tour next month with a lethal bowling attack, off-spinner Ravichandran Ashwin said on Friday.

"More than any ability or talent in a bowler, I think wickets are very important at the back to go into any series.

He just got a lovely nine wicket haul on debut here," Ashwin said after Shami's fiery bowling helped India wrap up the first Test against the West Indies in three days in Kolkata.