of course ~50 °C in summer of chennai (at the time saeed made his record) really cant be compared with 9°C of Gwalior, India (Sachin’s weather playing situation). 
and saeed made his record while playing against India, in India, UNDER PRESSURE!
ps. no doubt sachin is a great cricketer, but he is not a good sportsman. and this 200 i dont know how will it help India except for he will get more sponsor-br-and endorsements and not leaving his spot for any new comer.