NEW DELHI: Shares in India's Fortis Healthcare rose as much as 4.6 percent on Monday, after sources told Reuters Malaysian state investor Khazanah was poised to offer to buy all outstanding shares of Singapore's Parkway Holdings, bettering Fortis' offer. Khazanah's latest offer will be around S$3.95 ($2.88) per share of the Singapore healthcare firm in response to the S$3.80 offered by Fortis, the sources said.