India twice went down to England by an innings as they lost the five-Test series 1-3.
"It is a cheap shot to blame the IPL and portray the young Indian player as being uncaring about Test cricket," said Pietersen.
"I know Virat Kohli will be hurting and I know how happy Murali Vijay was to score a century at Trent Bridge and almost get another one at Lord's. It was dream come true for all of them to play a Test at Lord's. It hurts these guys every single time they do not score Test runs," he wrote in his column in 'Daily Telegraph'.
"What's not helping India away from home in Test cricket is not the IPL but the lack of opportunities for playing cricket abroad, which is a huge negative in terms of progression outside India.
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"The Board of Control for Cricket in India has stopped its players appearing in Twenty20 competitions because it does not want to add broadcast value to tournaments that rival the IPL," Pietersen said.
He further added that England would be more than happy to welcome the Indians to be a part of the county cricket.