Sillicon Vally of india loosing its edge?

Chart Source: LiveMint

The City Bangalore is well know us the sillicon vally of india.The big IT-Corporates of the worlds is here in bangalore...it was lead by the indian company's like Infosys,wippro and other indian major corporates operate from here.The growth is seen right from the 90's and in the recent past due to the traffic congestion,pollution and high cost of the property etc the other cities like Hyderabad,chennai,noida,pune became the attractive destination of many Mnc's and the bangalore city slowly loosing it's identity...may be in the near future all other major cities of india like chandigarh,coimbatore will attract more corporates.