If we sea past history, India saved by Russia lot of times whenever that required… America tired to collapse India like what they did Iraq. as per current status, top 5 armies are…… as per GLOBAL FIRE POWER. america never tried to show there friedship with india before 2004. after that Americas sudden change in motive makes suspect about that country in indian minds.
  1. USA
  3. CHINA
  4. INDIA
  5. Uk
1971 Bangladesh liberation war is the best example for Russia and USA difference in real relationship with India.

Superpowers Face-Off ::

On December 10, even as Nixon and Kissinger were frothing at the mouth, Indian intelligence intercepted an American message, indicating that the US Seventh Fleet was steaming into the war zone. The Seventh Fleet, which was then stationed in the Gulf of Tonkin, was led by the 75,000 ton nuclear powered aircraft carrier, the USS Enterprise. The world’s largest warship, it carried more than 70 fighters and bombers. The Seventh Fleet also included the guided missile cruiser USS King, guided missile destroyers USS Decatur, Parsons and Tartar Sam, and a large amphibious assault ship USS Tripoli.
Standing between the Indian cities and the American ships was the Indian Navy’s Eastern Fleet led by the 20,000-ton aircraft carrier, Vikrant, with barely 20 light fighter aircraft. When asked if India’s Eastern Fleet would take on the Seventh Fleet, the Flag Officer Commanding-in-Chief, Vice Admiral N. Krishnan, said: “Just give us the orders.” The Indian Air Force, having wiped out the Pakistani Air Force within the first week of the war, was reported to be on alert for any possible intervention by aircraft from the Enterprise.
Meanwhile, Soviet intelligence reported that a British naval group led by the aircraft carrier Eagle had moved closer to India’s territorial waters. This was perhaps one of the most ironic events in modern history where the Western world’s two leading democracies were threatening the world’s largest democracy in order to protect the perpetrators of the largest genocide since the Holocaust in Nazi Germany. However, India did not panic. It quietly sent Moscow a request to activate a secret provision of the Indo-Soviet security treaty, under which Russia was bound to defend India in case of any external aggression.
The British and the Americans had planned a coordinated pincer to intimidate India: while the British ships in the Arabian Sea would target India’s western coast, the Americans would make a dash into the Bay of Bengal in the east where 100,000 Pakistani troops were caught between the advancing Indian troops and the sea.
To counter this two-pronged British-American threat, Russia dispatched a nuclear-armed flotilla from Vladivostok on December 13 under the overall command of Admiral Vladimir Kruglyakov, the Commander of the 10th Operative Battle Group (Pacific Fleet). Though the Russian fleet comprised a good number of nuclear-armed ships and atomic submarines, their missiles were of limited range (less than 300 km). Hence to effectively counter the British and American fleets the Russian commanders had to undertake the risk of encircling them to bring them within their target. This they did with military precision.
In an interview to a Russian TV programme after his retirement, Admiral Kruglyakov, who commanded the Pacific Fleet from 1970 to 1975, recalled that Moscow ordered the Russian ships to prevent the Americans and British from getting closer to “Indian military objects”. The genial Kruglyakov added: “The Chief Commander’s order was that our submarines should surface when the Americans appear. It was done to demonstrate to them that we had nuclear submarines in the Indian Ocean. So when our subs surfaced, they recognised us. In the way of the American Navy stood the Soviet cruisers, destroyers and atomic submarines equipped with anti-ship missiles. We encircled them and trained our missiles at the Enterprise. We blocked them and did not allow them to close in on Karachi, Chittagong or Dhaka.”
At this point, the Russians intercepted a communication from the commander of the British carrier battle group, Admiral Dimon Gordon, to the Seventh Fleet commander: “Sir, we are too late. There are the Russian atomic submarines here, and a big collection of battleships.” The British ships fled towards Madagascar while the larger US task force stopped before entering the Bay of Bengal.
The Russian manoeuvres clearly helped prevent a direct clash between India and the US-UK combine. Newly declassified documents reveal that the Indian Prime Minister went ahead with her plan to liberate Bangladesh despite inputs that the Americans had kept three battalions of Marines on standby to deter India, and that the American aircraft carrier USS Enterprise had orders to target the Indian Army, which had broken through the Pakistani Army’s defences and was thundering down the highway to the gates of Lahore, West Pakistan’s second largest city.
According to a six-page note prepared by India’s foreign ministry, “The bomber force aboard the Enterprise had the US President’s authority to undertake bombing of the Indian Army’s communications, if necessary.
this not only my mind thought. if you ask any Indians, they will tell we will trust Russia always. not USA. every one having doubt about American relations.
India’s milestone mission Mangalyaan which first find out water in moon. when it losses connection from ground station, American Nasa can help india that time using there deep space communication.  
But America not helped that time.
what ever emergency situation , America not helped india.
But last few years, America trying to make strong relationship with India. we are welcome that good relationship which leads tod development both side. But how ever Indians cant trust fully due to past incidents. this is not Indians fault. every one think like that only. every one trust more time trusted friend only.
most of the Indians mind thought, don’t trust America. maintain relationship with Russia.   it may hurt some american brothers. but that is real. your rulers are like that only. this post for current indian rulers, who rules India for showing actual importance of russian relationship. And also this post for American rulers, who rules america ” we welcome your good relations only. not any other things.”
and this is the post for Russian rulers ” we love your time tested friendship. “