However Micromax has rejected the charges saying the Swedish company had failed to adhere to global commitments on providing its industry-essential patents to handset makers under so-called fair, reasonable and non-discriminatory (FRAND) terms.

The Micromax spokesperson said the company was committed to negotiate a FRAND agreement. "Micromax is committed to negotiating a FRAND licence with Ericsson as has Ericsson undertaken to providing a FRAND licence to Micromax. Since the matter is pending before the honourable court, it would be incorrect for Micromax to make any further statements on the matter."

The claimed damages make it the largest patent suit in India's IT and telecom space, reckon patent experts. 

The disputed handsets and tablets of Micromax include select models from its popular Ninja series, Funbook Talk, and the Canvas 2 series.

Ericsson is learnt to be mulling legal action against a few other local cellphone companies like Lava, Spice, Korbonn, and Intex as well.

Despite exiting the handset space, Ericsson continues to be among the biggest patent-holders in the mobile phone industry along with Nokia, Qualcomm and Samsung.

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