JAMMU: Expressing concern over reported Chinese incursions into Indian territories, BJP on Friday charged that it is an outcome of the policy failures of successive Congress governments at the Centre.

"This is an outcome of India's failure to perceive China's well-planned policy to exploit ambiguity over the LAC which has been perpetuated by successive Congress governments in New Delhi", BJP J&K chief spokesperson, Jitendra Singh said here on Friday.

He alleged that it started from the first Congress government headed by Prime Minister Jawaharlal Nehru and unfortunately even today, despite frequent recent incursions by Chinese, the present UPA government led by Congress is making no determined effort to redeem this ambiguity.

He expressed concern over reports that China has incrementally occupied nearly 640 square km of area on the Line of Actual Control (LAC) in Ladakh and the National Security Advisory Board member Shyam Saran having confirmed that China has also stopped Indian troops from patrolling at the LAC in Ladakh.

Singh went on to explain that the LAC, also known as the MacCartney-MacDonald Line , is an assumed border between India and the People's Republic of China.

Alleging that there were no lessons learnt even after 1962, Jitendra Singh said the term "LAC" was allowed to gain legal recognition through Sino-Indian agreements signed in 1993 and 1996.

He quoted the 1996 agreement which stated, "No activities of either side shall overstep the Line of Actual Control".

In spite of all these agreements, Singh said the Chinese continue to revel in ambiguity over LAC and even after the three week standoff between Indian and Chinese troops earlier this year, the Chinese troops are regularly intruding into Indian territory and also committing human rights violation by causing fear among the local population on Indian side.

BJP spokesman called upon the UPA government to come out with a policy document on China.