New Delhi, May 8 (IANS): India is keeping a watch on developments that may have a bearing on its "maritime interests", Defence Minister Manohar Parrikar informed the Lok Sabha on Friday.

The minister said this in a written reply to a question on whether China is rapidly building up its undersea capabilities while India's submarine fleet is not in robust condition.

"Government keeps a constant watch on all developments having a bearing on national security and takes all necessary measures including force accretion, capacity building and capability enhancement to safeguard our maritime interests," Parrikar said in response to the question.

"Ships and aircraft of Indian Navy and Indian Coast Guard regularly undertake surveillance in our areas of interest on the western and eastern seaboards. Information sharing with various security agencies is carried out to optimize surveillance," he said.

The minister added that a coastal chain of "static radars" has also been established for the purpose.