India is conducting a review of its standing operating procedures for operations, maintenance and inspection of weapons systems after accidentally launching a missile into Pakistan last week, its defence minister said on Tuesday.

"We attach the highest priority to the safety and security of our weapon systems. If any shortcoming is found, it would be immediately rectified," Rajnath Singh told parliament.

India accidentally released a missile, which landed in Pakistan, around 7pm last Wednesday during routine maintenance and inspection, he said.

"While this incident is regretted, we are relieved that nobody was hurt due to the accident," Singh said.

An Indian media report said that an unarmed, practice-version of the BrahMos supersonic missile was accidentally fired into Pakistan during an inspection at a secret satellite base of the Indian Air Force.

Later, Inter-Services Public Relations Director General Maj Gen Babar Iftikhar in a media briefing on March 10 said that a high-speed flying object was picked up inside the Indian territory by the Air Defence Operations Centre of the Pakistan Air Force on March 9.

India on Friday said it regretted the March 9 incident in which a missile was "accidentally" launched from India and entered Pakistani territory, crashing in the Mian Channu area of Khanwal district in Punjab.

Moreover, Pakistan has demanded a joint probe into the incident to "accurately establish" the facts.