Over 200 party activists held demonstrations, raising anti-China slogans and burnt an effigy of China.
"On one side, China is engaged in incursions in Ladakh region of J&K, and on the other, India is giving a red carpet welcome to the Chinese premier," JKNPP leader Rajesh Pargotra told reporters here.
"Why has the PM been invited when just a few days back the Chinese made incursions into Indian territory," he said.
Pargotra said the Centre should negotiate the issue of incursion with "iron hand".
Last month, Chinese troops on April 15 intruded nearly 19 kms in Daulat Beg Oldi sector in Ladakh, prompting Indian troops to erect tents in front of them. The "face-to-face" situation was finally resolved after three weeks.