Laptop Recommendations: Budget: Rs. 35000

I am planning to have a laptop. I am a professional and working in Engieering Construction Company. I am a mechanical engineer. My requirements for Laptop are:
Fast Processor, HD graphics, Suited for working with designing Softwares like Autocad, Google sketch-up, Primavera Software for project Planning etc. Along with that gaming, music, Videos,good Video Camera etc. are the general Requirement. Budget is Max upto 35000/-. The after sales service point should be focussed and battery back up should be good.

Please suggest the best product suited to my requirement.

Thanks & Regards
Mahaveer Jain