"The Defence Ministry has written to the MEA and we will raise it (the issue) with Pakistan, the ministry Spokesperson Vikas Swarup said here.
On January 26, a US-made helium-filled balloon was shot down by a Sukhoi-30 fighter aircraft over Rajasthan with top government sources maintaining that it had come from Pakistan and could have been an attempt to gauge India's response time.
The shiny 3 metres in diametre balloon, with "Happy Birthday" written on it, was flying at a height of about 25,000 feet in Jaisalmer district when it was picked up by the air force radars which were on high alert in view of Republic Day celebrations.