Everything depends in which group you are working and which location.
Pros
Best reason to work here .... if you are talking about Noida .. only reason I can thing about that its all about the North India. People have very less options here and out of that again I would say salary wise it's the best option.
Cons
Reasons for not to work here... there are several reasons.. 1) Policies are very old. Still Cadence has 3 month of Notice period. Can you believe guys .. 3 months.. in one way cadence are forcing you that once you join .. you can't leave this company. No other company has a 3 month notice period now a days... but it has.. :( 2) HR is worst.. they are biased .. not employee friendly ..they are manager driven. Even in case of issues with the manager, they will support Managers. Because they think if they have to stay in Cadence .. they have to support Manager. 3) Few groups are very very worst group. Working there is like making your life worst. So it's always advisable to choose group very wisely. I would say check the review first.