The Kolkata outfit dominated the proceedings after striker Md Mukhtar put the team into the lead in the 12th minute.
The north-eastern team was well under pressure as Sporting players kept raiding their citadel frequently.
Even as the Aizawl defenders were struggling to save a move made by their rivals, the ball was deflected from the body of Laldinpuia into the net in the 17th minute.
David Sunday scored the third goal (21st minute) while captain Alred K Jaryan followed suit a minute later to lead Sporting 4-0 at lemon break.
Sporting did not look back and continued to mount pressure on their opponent in the second half.
Jaryan struck twice in the 52nd minute while Ashim Biswan netted one goal in the 89th minute.
Francis Zonuntluanga scored the lone goal for Aizawl FC in 56th minute.
