Practice of opening bookings for cars prior to launch has been followed by several companies over many years in India.
Maruti Suzuki was allotted 700 acres by the Gujarat government for its third manufacturing unit, near Mehsana, in June last year.
The proxy advisory firm's latest comments come within days of Maruti saying that it expects to save about Rs 10,500 crore (Rs 105 billion) in the first 15 years by not investing in the Gujarat facility.
Car makers are cautiously optimistic, even as two-wheeler firms are clearly upbeat.
Auto sector has nothing to look forward to in the Budget.
The 30-share Sensex lost 12 points to end at 29,559 and the 50-share Nifty climbed 4 points to close at 8,914.