[11] In 2011, due to the 2G-spectrum controversy (explained below), the company got involved in a public spat due to which its Chairman Sanjay Chandra al while on bail[12] over Telenor's pressure to do so, followed by news of Unitech's settlement of issues by agreeing to sell its entire stake in the Unitech Wireless to shift the business to a new entity owned by the former almost 1 year later[13] and then Telenor shifted the erstwhile United Wireless' entire assets into a newly formed holding company as its majority-owned subsidiary Telewings Communications Services Pvt.

[14] In 2021, the Enforcement Directorate filed a criminal case against Unitech Limited under suspicion that the organization had illegally diverted Rs 2,000 crore to tax havens.

[18] In March 2017, Sanjay Chandra, who had been out on bail in the 2G case, and brother Ajay were arrested by the Economic Offences Wing of the Delhi Police for allegedly duping home-buyers in a Gurugram project.

On 21 October 2019, the Noida Authority has cancelled the allotment of a group housing property to crisis-hit realtor Unitech over non-payment of dues worth Rs 1,203 crore.

[19] In December 2019, the apex court has asked the central government to take over the management of the company, Keeping in mind the interests of about 30 thousand home buyers.