Information on non soliciting clause in employment(CNSA)

I am an indian working in Singapore on employment pass . I shall be retiring from he current employment and planning to return to Chennai. before the current employment i was employed by a US organisation in their singapore office . While joining that (US)organisation i signed the CNSA under texas laws and jurisdiction. That organisation has sought legal proceedings against me in texas court and the case is scheduled for jan 2018 by which time i am planning to return to India . Though there is no merit int hat case and all are false charges I dont intend to fight in Texas court it is very costly and i cannot afford the cost of litigation. What are the options available to me . On hearing from you i can send all documents for you to study and advise me on this . Can i file a case against that company in india for harassing me and causing me mental agony .please advsie .