Prime Minister Manmohan Singh today arrived in South Korea on a four-day visit, where he would attend the Nuclear Security Summit.
Ahead of the Summit, which begins next week, India voiced concerns over Pakistan's nuclear programme saying it has "very little confidence" on the capabilities of its Western neighbour on securing its atomic assets.
"We have very little confidence their nuclear programmes are secure or will stay safe," sources said. The possibility of "insider threat" was the prime concern among the Indian establishment and building capacities would be the key element in India's pitch at the Summit. "The real problem is the insider threat," the sources said talking about Pakistan's nuclear programme.
They cautioned the fissile material could get into the hands of terrorists, who could use it to make dirty bombs. They said an insider could be a person having legitimate reason to hold and control nuclear materials, but who could also do the same for illegitimate purposes.
Multilateral meetings, like the Nuclear Security Summit, help in building capacities and building cooperation with countries but each country needs to shoulder the responsibility of protecting its own nuclear assets.
Concerns over nuclear security have heightened, particularly in the wake of the Fukushima accident, as officials fear that fissile material from such crippled reactors could fall in wrong hands if proper steps were not taken to secure it.
Prime Minister Manmohan Singh is expected to unveil before the Summit the steps India has taken to tackle challenges of nuclear terrorism.