After India's growth rate halved over the past few years, the worst is finally over, says Chanda Kochhar, chief executive officer of ICICI Bank – the country's largest private sector bank.

"The worst is over…export-oriented companies are doing better because of the adjustment in the rupee. We brought a lot of control on our current account deficit (and) the government is quite focused on [controlling] the fiscal deficit," Kochhar said on CNBC's Managing Asia.