In the 2016-17 fiscal, the online market had grown by 19 per cent, Minister of State for Consumer Affairs C R Chaudhary said in a written reply to the Rajya Sabha.
"India's e-commerce market is estimated to be $33 billion in the financial year 2017," he said, quoting industry body NASSCOM's latest estimates.
"The complaints are forwarded to the companies concerned for resolution," he said.
If consumer complaints are not resolved and if there is no response from the company, then consumers are advised to approach appropriate consumer forum, he added.
At present, there is a three-tier quasi-judicial mechanism in place for redressal of consumer grievances at district, state and national level.
To protect consumer interest, he said, the government has made several provisions to strengthen the consumer grievance redressal mechanism in a bill which was introduced in the Lok Sabha in August 2015.