They agreed to give the mahr in gold instead of cash. What is the ruling?
Question

                I was married eight years back however until now I did not pay my Mahr but I am planning to give it know, which is Indian rupees 7,000. Instead of money (cash) I want to give her gold ornaments of equivalent or more cash. Besides I had asked her does she needs cash or gold, she said that it is up to me. Please advice me? How to pay my mahr back?
Praise be to Allah.
    The basic principle is that the man is obliged to give the 
    mahr that he stipulated to the woman. If they agree on something different, 
    or on more or less, then that is permissible, because Allaah says 
    (interpretation of the meaning): 

    “but if after a Mahr is prescribed, you agree mutually (to 
    give more), there is no sin on you”

    [al-Nisa’ 4:24]
Al-Qurtubi (may Allaah 
    have mercy on him) said: “This means, giving more or less in the mahr, for 
    that is allowed when there is mutual agreement, after the mahr has been 
    agreed upon.” (Tafseer al-Qurtubi, 5/235). 

    Shaykh Saalih al-Fawzaan said: “If she gives him part of it – 
    part of the mahr – there is nothing wrong with that. If she lets him off 
    paying all or part of the mahr, she has the right to do so. Allaah says 
    (interpretation of the meaning): 

    ‘but if they, of their own good pleasure, remit any part 
    of it to you, take it, and enjoy it without fear of any harm (as Allaah has 
    made it lawful)’

    [al-Nisa’ 4:4]
This is dependent on 
    agreement from both parties.” 

    (Fataawa Noor ‘ala’l-Darb, 109). 

    So it is clear from this that if the woman agrees to this, 
    there is nothing wrong with that because this is her right. 

     And Allaah knows best.