NEW DELHI (Reuters) - Global energy giant Exxon Mobil Corp will offer its expertise and technology to India's biggest state-owned explorer Oil and Natural Gas Corp Ltd to help develop its resources in offshore blocks, according to two sources directly privy to the development.The memorandum of understanding (MoU), signed late Monday, will be later signed as a definitive deal after Exxon studies the blocks of the company, one of the sources told Reuters.Lately, India is generating a lot of..