That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved.
Romans 10:9

For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life. [John 3:16]
What salvation is not

Religion is a man or woman trying to be good; Salvation is in the Man Jesus
Christ, not in works!

God the creator has a process by which you must be saved.  There is only one
path, His. No other path leads to salvation:

Every religion that replaces Jesus Christ with anything (good works, another man, angels, spirits, etc) or requires anything (penance, unction, the rosary, signs and wonders, tongues, a pilgrimage to a place, flagellation, etc) in addition to Jesus Christ is another gospel and is not a saving faith.

Of Jesus Christ the scriptures say:

But this man, after he had offered one sacrifice for sins for ever, sat down on the right hand of God; From henceforth expecting till his enemies be made his footstool. For by one offering he hath perfected for ever them that are sanctified. ...Now where remission of these is, there is no more offering for sin. Having therefore, brethren, boldness to enter into the holiest by the blood of Jesus, By a new and living way, which he hath consecrated for us, through the veil, that is to say, his flesh; And having an high priest over the house of God; Let us draw near with a true heart in full assurance of faith, having our hearts sprinkled from an evil conscience, and our bodies washed with pure water. Let us hold fast the profession of our faith without wavering; (for he is faithful that promised;) [Hebrews 10:12-23]

Therefore salvation is not in any religion (Catholicism, Islam, Hinduism, Buddhism, Sikhism, Judaism, Baha'ism, Confucianism, Jainism, Shintoism,
etc).  Either you personally know Him as your Saviour or you are lost.  In fact
lost and headed to hell is your condition all your pre-Christian life. Do nothing
and you will remain that way. Follow any of the world religions and you will
remain that way. You don't go to hell for something you did, you go to hell for
something you didn't do.

You go to Hell because you rejected Jesus' imputed righteousness. 

Salvation is exclusive, it is only in Jesus Christ.
Behold, now is
the accepted time;
 behold, now is
the day of salvation.
II Corinthians 6:2

[Ephesians 2:8]
[Acts 4:12]
[1 Timothy 2:5-6]
For by grace are ye
saved through faith;
and that not of
yourselves: it is the gift of God: [Ephesians 2:8]
Neither is there salvation in any other: for there is none
other name under heaven
given among men, whereby
we must be saved.
[Acts 4:12]
For there is one God, and
one mediator between God
and men, the man Christ
Jesus; Who gave himself a
ransom for all, to be testified
in due time. [1 Timothy 2:5-6]
[John 3:18]

He that believeth on him is not condemned: but he that believeth not is condemned already, because he hath not believed in the name of the only begotten Son of God.  [John 3:18]