The Opposition party also accused the BJP and the Sangh Parivar of indulging in "fake news" and propaganda to "befool" voters in elections and urged the Election Commission and media watchdog to take cognisance of it.
"In the last 32 months, 188 security personnel have laid down their lives for India. There were 10 attacks on our security establishments. There has been a 200 per cent rise in infiltrations. It is for the people to decide if the Modi government has made India more secure or less secure.
He said in 2016, 105 jawans were killed and 82 civilians also lost their lives and in various terror attacks perpetrated on India and its people.
The Congress leader noted that India has recorded the maximum number of bomb blasts last year, which is even more than war-torn countries like Afghanistan or Iraq.
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"The unfortunate part of this government is that it continues to use national defence for politics only. They have been exposed by the number of jawans and civilians killed.
"Their repeated failure in isolating Hafiz Sayeed and Azhar Masood is a result of the Prime Minister's one-man show without consultations and discussions," he said.
Kumar also lamented that China has repeatedly "sabotaged" India's attempts at the United Nations. "The Prime Minister has to answer that when he was swinging in the swing on the banks of river Sabarmati, how come such close so-called friends have ensured that India's efforts failed," he said.
Taking a dig at the government over the "hacking" of Union Home Ministry's website, Kumar said, "If a government cannot safeguard its own Home Ministry website, then is it capable of safeguarding the nation?"
The Congress leader said BJP keeps on saying they will give a strong response to attacks. "But their response has been to send artistes to Karachi," he said.
Attacking BJP over publication of an exit poll "through a Hindi Daily and attributed to a research organisation", he said, "the BJP and the Sangh Parivar have old habit of spreading fake news and propaganda, especially on social media."
"Staring at an imminent defeat, the BJP is creating fake propaganda to influence voters," he alleged, adding, "If there is one thing that the BJP IT Cell is good at, it is Adobe Photoshop. They may be its biggest users."
He claimed that people of five states have already made up mind to vote for Congress.
Referring to a purported audio involving Union Minister Ananth Kumar and B S Yeddyurappa and corruption charges, he wondered why the Prime Minister is "silent".