BJP also used the issue to take at dig at Congress top brass, alleging the party was trying to "cover up" their "absence" due to their "holidaying" abroad by its "petty and narrow" criticism of Modi.
"Congress is becoming pettier by raising such issues and raking up a controversy where none exists," BJP spokesperson G V L Narasimha Rao said.
Rao said Congress was frustrated with increasing popularity of Modi and therefore "making unwarranted and irrelevent" remarks about him on every issue.
BJP's reaction came after Modi autographed an Indian flag in New York to be gifted to President Barack Obama, evoking sharp reaction from Congress which said "However high you may be, the national flag is above you, you should understand this".