The Prime Minister was speaking to reporters on the sidelines of the defence investiture ceremony at Rashtrapati Bhavan in New Delhi.
On April 15, a platoon-strength contingent of China's People's Liberation Army (PLA) had come inside the Indian territory in Burthe in the DBO sector and established a tented post there.
The government had on Friday told a Parliamentary Committee that Chinese troops have pitched tents 19 kms deep inside the Indian territory in Ladakh region.
The Army has given its inputs to the government and the National Security Advisor-headed China Study Group, which is handling the present situation in Ladakh.
The Army has also given various options to the government on the issue including the aggressive use of military to handle the present situation.
All the options suggested to the China Study Group are being looked at carefully and other stakeholders in the situation have also given their inputs.
The Army had rushed its troops from the 5 Ladakh Scouts battalion to the DBO area and they are camping there. The force is also considering the option of dispatching additional troops if the need arises.