India has said, it is not unduly worried over China's military modernization. Defence Minister A. K. Antony, however, termed the neighbour's defence budget a matter of concern. He asserted that India needs to carry out a comprehensive review of its defence preparedness and remain vigilant at all times. Talking to reporters on the sidelines of a defence seminar in New Delhi yesterday, the Defence Minister said, the government was continuously carrying out a review of defence modernization and preparedness to plug the loopholes. On the long-pending border dispute with China, Antony said the complicated issue could be settled only through dialogue and discussions. On India-US Malabar series of naval exercises in April, which are being viewed by the country's Left parties as being China-specific, the Defence Minister said the drill was meant to increase the Indian Navy's capabilities and was not against any country. He said the Malabar series was 15 years old and was held every year. Speaking at the South Asian Security Conference of the Institute for Defence Studies and Analyses (IDSA), Antony said India's relations with other nations were governed by its security imperatives and was not aimed against other countries. He said the two largest nations of the region; India and China needed to enhance cooperation levels on common issues such as climate change and trade. On Pakistan, Antony said, any meaningful progress in the dialogue process can take place only if Islamabad takes concrete steps to address New Delhi's concerns on 26/11 terror attacks in Mumbai. However, the Minister added that the two sides have just concluded the Foreign Secretary-level talks which demonstrated their desire to carry forward the dialogue process. Antony said, the stability of the Asian region is crucial for world piece. Without naming any country Antony said that the transition of power must in variably be through peaceful and non violence means. The Minister further added that prominent challenges facing Asian region include terrorism, nuclear proliferation, piracy and smuggling of arms. He said to combat these common identity and an efficient security architecture is needed. AIR correspondent reports, security experts from several countries are participating in these three days event.