Mauricio Pochettino's side were well below their best for long periods at Selhurst Park, but Eriksen came to the rescue in dramatic fashion with 12 minutes left.
His sumptuous long-range strike closed the gap on Chelsea to four points after their title rivals had moved seven points clear with a win over Southampton 24 hours earlier.
With five games remaining, Tottenham remain in the hunt to be crowned champions for the first time since 1961 as they look to avenge Sunday's agonising FA Cup semi-final defeat against Chelsea by pipping them to the title.
After defeating Chelsea, Arsenal and Liverpool recently, Palace deserved better than defeat here, although they should still be safe from relegation.
Recognising the weakness that Chelsea exploited so ruthlessly, Pochettino dropped Son Heung-Min and recalled Ben Davies after his experiment with using the South Korea forward out of position at left wing-back failed at Wembley.
Despite that change, it wasn't easy for Tottenham to erase the scars of their semi-final collapse.
Those bungled early raids foreshadowed a subdued half from Tottenham as they struggled to rebuild their shaken confidence.
Faced with a supremely organised Palace side with the pace and power to hurt them on the counter, Pochettino's men looked fatigued mentally and physically.
Christian Benteke threatened to bludgeon the visitors into submission when the muscular Palace striker tested Hugo Lloris with a low strike.
Anxiety was afflicting every decision Tottenham took and when a weak clearance fell to Kyle Walker in space inside the penalty area, the defender wastefully volleyed high over the bar.
- Bolt from the blue -
======================
Townsend was proving a thorn in his old team's side and the winger fired just over after a clever turn took him past the Tottenham defence.
Desperate to ignite his punchless side, Pochettino sent on Son and Moussa Sissoko at half-time to give Tottenham an extra man in midfield and the changes gradually had a positive effect.
Just as significantly, Mamadou Sakho, who had been imperious at the heart of the Palace defence, was carried off early in the second half after his knee twisted awkwardly when he stretched to tackle Harry Kane.
Alli produced a more accurate effort moments later, yet it lacked the power to beat Wayne Hennessey and when Kane headed straight at the Palace keeper soon after it appeared Tottenham were destined to be frustrated.
But Eriksen had other ideas and the Dane snatched the winner with a bolt from the blue in the 78th minute.
Dropping deep to take possession, Kane teed up Eriksen and, as Palace backed off, he unleashed a precise low 25-yard strike that fizzed past the slow to react Hennessey and sparked wild celebrations from Pochettino and his players.
Disclaimer: No Business Standard Journalist was involved in creation of this content
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
